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แˆˆแ‰ตแˆแˆ…แˆญแ‰ต แˆ›แˆ…แ‰ แˆจแˆฐแ‰ก แŠฅแŠ“ แˆˆแ‰ฐแˆ›แˆชแ‹Žแ‰ฝ แ‰ แ‰€แˆ‹แˆ‰ แ‰ตแˆแˆ…แˆญแ‰ณแ‹Š แˆ˜แˆจแŒƒแ‹Žแ‰ฝแŠ• แฃ แˆ˜แ…แˆƒแŽแ‰ฝแŠ• แฃ แ‰ตแˆแˆ…แˆญแ‰ณแ‹Š แŒฅแ‹ซแ‰„แ‹Žแ‰ฝ แฃ แ‰ตแˆแˆ…แˆญแ‰ณแ‹Š แŠ แ•แˆŠแŠชแˆฝแŠ• แŠฅแŠ“ แ‰ปแŠ“แˆŽแ‰ฝแŠ• แˆแˆ‰แŠ•แˆ แ‰ แ‰€แˆ‹แˆ‰ แŠฅแŠ•แ‹ฒแ‹ซแŒˆแŠ™ แ‰ณแˆตแ‰ฆ แ‹จแ‰ฐแ‹˜แŒ‹แŒ€ แ‰ปแŠ“แˆ แАแ‹:: โ’ถโ“€ ๐•–๐••๐•ฆ๐•”๐•’๐•ฅ๐•š๐• ๐•Ÿ

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โ€‹๐Ÿ”ข Math Practice & Solutions โ€‹Here are the step-by-step solutions for the problems provided: โ€‹Question 4 Data: 1, 3, 7, 9, 11, 13, 18, 28 Problem: What is the coefficient of mean deviation about the median? โ€‹โœ… Solution: โ€‹Find the Median: (9+11)/2 = 10 โ€‹Calculate the absolute deviations from 10: 9, 7, 3, 1, 1, 3, 8, 18 โ€‹Sum of deviations = 50 โ€‹Mean deviation = 50/8 = 6.25 โ€‹Coefficient of mean deviation = 6.25 / 10 = 0.625 โ€‹The answer is: 5/8 (Option C) โ€‹Question 5 Problem: Which of the following is an irrational number? โ€‹โœ… Solution: โ€‹A. 3.4000 (Rational - terminating decimal) โ€‹B. โˆš0.04 = 0.2 (Rational) โ€‹C. 1.16222... (Rational - repeating decimal) โ€‹D. โˆš29 (Irrational - because 29 is not a perfect square) โ€‹The answer is: Option D โ€‹Question 6 Problem: Which trigonometric function represents the graph shown? โ€‹โœ… Solution: By looking at the graph, when x=0, y=0; and when x=ฯ€/2, y=1. This is the characteristic behavior of the Sine function. โ€‹sin(0) = 0 โ€‹sin(ฯ€/2) = 1 โ€‹The answer is: y = sin x (Option B)

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## 1. Understanding Power Functions Question: 1 Which one of the following functions is NOT a power function? * A. f(x) = x^{-3/5} * B. f(x) = \sqrt{2}x^2 * C. f(x) = \pi x^5 * D. f(x) = (\sqrt{3})^x Explanation: A power function is defined as a function of the form f(x) = ax^n, where a and n are fixed real numbers (a is the coefficient, n is the exponent). In a power function, the variable (x) is the base, and the exponent is a constant. * In A, B, and C, the variable x is the base, and the exponent is a constant number. Therefore, they are power functions. * In D, f(x) = (\sqrt{3})^x, the variable x is in the exponent position, not the base. This is defined as an exponential function, not a power function. Correct Answer: D ## 2. Calculating the Derivative Question: Let f(x) = (1 - 2x)^{1/2}. What is the value of f'(x)? * A. \frac{1}{\sqrt{1-2x}} * B. -\frac{1}{2}\sqrt{1-2x} * C. \frac{1}{2}\sqrt{1-2x} * D. \frac{-1}{\sqrt{1-2x}} Explanation: To solve this, we use the Chain Rule. The chain rule states that if f(x) = g(h(x)), then f'(x) = g'(h(x)) \cdot h'(x). 1. Identify the outer function g(u) = u^{1/2} and the inner function u = (1 - 2x). 2. Take the derivative of the outer function: \frac{d}{du}(u^{1/2}) = \frac{1}{2}u^{-1/2} = \frac{1}{2\sqrt{u}}. 3. Take the derivative of the inner function: \frac{d}{dx}(1 - 2x) = -2. 4. Multiply them together: ย ย  Correct Answer: D ## 3. Scalar vs. Vector Quantities Question: Which of the following statements describes the difference between scalar and vector quantities? * A. Physical quantities that only have direction are scalars, while that have only magnitude are vectors. * B. Physical quantities that only have magnitude are scalars, while that have both magnitude and direction are vectors. * C. Physical quantities that only have magnitude are vectors, while that have both magnitude and direction are scalars. * D. Physical quantities that only have direction are vectors, while that have both magnitude and direction are scalars. Explanation: To distinguish between these two fundamental physical quantities, remember these definitions: * Scalar Quantities: Have only magnitude (size or amount). Examples include mass, time, distance, and temperature. * Vector Quantities: Have both magnitude AND direction. Examples include displacement, velocity, force, and acceleration. Comparing this to the options, Option B correctly matches these definitions. Correct Answer: B แ‹จแˆšแ‰€แŒฅแˆˆแ‹ แŠญแแˆ แŠฅแŠ•แ‹ฒแˆˆแ‰€แ‰… ๐Ÿ‘ Like แŠฅแŠ“ Share แ‰ แˆ›แ‹ตแˆจแŒ แˆˆแŒ“แ‹ฐแŠžแ‰ปแ‰ฝแˆ แŠ แŒ‹แˆฉ!
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โ€‹๐ŸŽ“ แ‹จ2017 แ‹“.แˆ แ‹จแŠขแŠ•แ‰ตแˆซแŠ•แˆต แˆแˆแˆแ‹ต (แŒฅแ‹ซแ‰„ 1 - 3) โ€‹แŠจแˆ‹แ‹ญ แ‹ซแˆ‰แ‰ต แŒฅแ‹ซแ‰„แ‹Žแ‰ฝ แˆ˜แˆฐแˆจแ‰ต แˆซแˆณแ‰ฝแˆแŠ• แˆˆแˆ˜แˆแ‰ฐแŠ• แˆžแŠญแˆฉแข แˆ˜แˆแˆฑแŠ• แˆˆแˆ›แ‹จแ‰ต แŠจแˆ˜แ‰ธแŠฎแˆ‹แ‰ฝแˆ แ‰ แŠแ‰ต แ‰ แˆซแˆณแ‰ฝแˆ แˆˆแˆ˜แˆตแˆซแ‰ต แˆžแŠญแˆฉ!
โ€‹๐ŸŽ“ แ‹จ2017 แ‹“.แˆ แ‹จแŠขแŠ•แ‰ตแˆซแŠ•แˆต แˆแˆแˆแ‹ต (แŒฅแ‹ซแ‰„ 1 - 3) โ€‹แŠจแˆ‹แ‹ญ แ‹ซแˆ‰แ‰ต แŒฅแ‹ซแ‰„แ‹Žแ‰ฝ แˆ˜แˆฐแˆจแ‰ต แˆซแˆณแ‰ฝแˆแŠ• แˆˆแˆ˜แˆแ‰ฐแŠ• แˆžแŠญแˆฉแข แˆ˜แˆแˆฑแŠ• แˆˆแˆ›แ‹จแ‰ต แŠจแˆ˜แ‰ธแŠฎแˆ‹แ‰ฝแˆ แ‰ แŠแ‰ต แ‰ แˆซแˆณแ‰ฝแˆ แˆˆแˆ˜แˆตแˆซแ‰ต แˆžแŠญแˆฉ!
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๐Ÿ“š แ‹จ10แŠ› แŠญแแˆ (Grade 10 Mathematics) แˆ›แŒ แ‰ƒแˆˆแ‹ซ โ€” แŠญแแˆ 2 ๐Ÿ“š #แŠ แ‰ฅแˆจแŠ•_แŠฅแŠ“แˆตแ‰ณแ‹แˆต #MathsGrade10 ๐Ÿ‡ช๐Ÿ‡น Unit 4: Trigonometric Functions โ€ข ๐Ÿ”น Trigonometric Ratios: For a right-angled triangle: โ–ซ๏ธ sin(ฮธ) = Opposite / Hypotenuse โ–ซ๏ธ cos(ฮธ) = Adjacent / Hypotenuse โ–ซ๏ธ tan(ฮธ) = Opposite / Adjacent โ€ข ๐Ÿ”น The Unit Circle: A circle with a radius of 1 centered at the origin (0,0). For any point (x, y) on the unit circle: โ–ซ๏ธ x = cos(ฮธ) โ–ซ๏ธ y = sin(ฮธ) โ–ซ๏ธ xยฒ + yยฒ = 1 โžก๏ธ แˆตแˆˆแ‹šแˆ… sinยฒ(ฮธ) + cosยฒ(ฮธ) = 1 (Fundamental Identity) โ€ข ๐Ÿ”น Graphs of Sine and Cosine: Both functions are periodic with a period of 360ยฐ (or 2ฯ€ radians). Their maximum value is 1, and minimum value is -1. ๐Ÿ‡ช๐Ÿ‡น Unit 5: Circles โ€ข ๐Ÿ”น Chords and Arcs: A chord is a line segment connecting two points on a circle. Equal chords subtend equal angles at the center. โ€ข ๐Ÿ”น Angles in a Circle: โ–ซ๏ธ Central Angle: An angle whose vertex is the center of the circle. โ–ซ๏ธ Inscribed Angle: An angle whose vertex is on the circle. *The measure of a central angle is twice the measure of the inscribed angle that intercepts the same arc.* โ€ข ๐Ÿ”น Tangents and Secants: โ–ซ๏ธ A tangent touches the circle at exactly one point and is perpendicular to the radius at that point. โ–ซ๏ธ A secant is a line that intersects a circle at two points. ๐Ÿ‡ช๐Ÿ‡น Unit 6: Solid Figures ๐Ÿ“Œ Prisms and Cylinders: โ€ข ๐Ÿ“ Volume: V = A_b ร— h *(Base Area ร— height)* โ€ข ๐Ÿ“ Lateral Surface Area (LSA) of Cylinder: LSA = 2ฯ€rh ๐Ÿ“Œ Pyramids and Cones: โ€ข ๐Ÿ“ Volume: V = (1/3) ร— A_b ร— h โ€ข ๐Ÿ“ Volume of a Cone: V = (1/3)ฯ€rยฒh ๐Ÿ“Œ Spheres: โ€ข ๐Ÿ“ Volume: V = (4/3)ฯ€rยณ โ€ข ๐Ÿ“ Surface Area: A = 4ฯ€rยฒ ๐Ÿ“Œ Frustum of a Pyramid/Cone: A truncated solid figure formed by cutting off the top with a plane parallel to the base. ๐Ÿ‡ช๐Ÿ‡น Unit 7: Coordinate Geometry โ€ข ๐Ÿ”น Distance Formula: The distance between two points Pโ‚(xโ‚, yโ‚) and Pโ‚‚(xโ‚‚, yโ‚‚) is: d = โˆš[(xโ‚‚ - xโ‚)ยฒ + (yโ‚‚ - yโ‚)ยฒ] โ€ข ๐Ÿ”น Midpoint Formula: M = ((xโ‚ + xโ‚‚)/2, (yโ‚ + yโ‚‚)/2) โ€ข ๐Ÿ”น Slope (Gradient) of a Line (m): m = (yโ‚‚ - yโ‚) / (xโ‚‚ - xโ‚) โ€ข ๐Ÿ”น Equation of a Line: โ–ซ๏ธ Slope-Intercept form: y = mx + c *(where m is slope, c is y-intercept)* โ–ซ๏ธ Point-Slope form: y - yโ‚ = m(x - xโ‚) ๐Ÿ‡ช๐Ÿ‡น Unit 8: Statistics and Probability ๐Ÿ“Œ Measures of Central Tendency (for Grouped Data): โ€ข ๐Ÿ“Š Mean (xฬ„): โˆ‘(f ร— x) / โˆ‘f *(where f is frequency and x is class mark).* โ€ข ๐Ÿ“Š Median & Mode: Found using specific formulas based on the median class and modal class intervals. ๐Ÿ“Œ Probability: โ€ข ๐ŸŽฒ Probability of an Event P(E): P(E) = Number of favorable outcomes / Total number of possible outcomes โ€ข ๐ŸŽฒ Range: 0 โ‰ค P(E) โ‰ค 1 *(0 แˆ›แˆˆแ‰ต แ‹จแˆ›แ‹ญแˆ†แŠ•/Impossibleแฃ 1 แˆ›แˆˆแ‰ต แ‹ฐแŒแˆž แŠฅแˆญแŒแŒ แŠ›/Certain).* ๐Ÿ แ‹จ10แŠ› แŠญแแˆ แˆ›แ‰ฒแˆ›แ‰ฒแŠญแˆต แˆ›แŒ แ‰ƒแˆˆแ‹ซ แ‰ แ‹šแˆ… แ‰ฐแŒ แŠ“แ‰‹แˆแข แ‹ญแˆ… แˆ›แŒ แ‰ƒแˆˆแ‹ซ แˆˆแˆแ‰ฐแŠ“ แˆˆแˆšแ‹˜แŒ‹แŒ แ‰ฐแˆ›แˆชแ‹Žแ‰ฝ แŒ แ‰ƒแˆš แˆตแˆˆแˆ†แА ๐Ÿ‘ Like แŠฅแŠ“ Share แ‰ แˆ›แ‹ตแˆจแŒ แˆˆแˆŒแˆŽแ‰ฝแˆ แŠ แŒ‹แˆฉ!
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แŠ แˆตแˆจแŠ› แŠญแแˆ Mathematics แˆแŠ• แ‹ซแˆ…แˆ แ‰ณแˆตแ‰ณแ‹แˆณแˆ‹แ‰น แข #แŠ แ‰ฅแˆจแŠ•_แŠฅแŠ“แˆตแ‰ณแ‹แˆต ๐Ÿ‡ช๐Ÿ‡นUnit 1: Relations and Function โ€ข Relation: A relation is a set of ordered pairs, typically defined as a subset of the Cartesian product of two sets. โ€ข Domain: The set of all possible inputs (first elements) for a relation. โ€ข Range: The set of all possible outputs (second elements) for a relation. โ€ข Function: A special type of relation where each element in the domain is associated with exactly one element in the range. โ€ข Notation: A function is often denoted asย  f(x) , whereย  xย  is the input variable. โ€ข One-to-One Function: A function where each element of the range is mapped by at most one element of the domain. โ€ข Onto Function: A function where every element in the range is mapped by at least one element of the domain. โ€ข Inverse Function: A function that reverses the mapping of the original function. Ifย  f(x) = y , thenย  fโปยน(y) = x . ๐Ÿ‡ช๐Ÿ‡น Unit 2: Polynomial Function โ€ข Polynomial Function: A function of the formย  f(x) = aโ‚™xโฟ + aโ‚™โ‚‹โ‚xโฟโปยน + ... + aโ‚x + aโ‚€ , whereย  aโ‚™, aโ‚™โ‚‹โ‚, ..., aโ‚€ย  are constants andย  nย  is a non-negative integer. ๐Ÿ“ฌOperations on Polynomial Functions โ€ข Addition: Combining polynomials by adding their corresponding coefficients. โ€ข Subtraction: Combining polynomials by subtracting their corresponding coefficients. โ€ข Multiplication: Using the distributive property to multiply polynomials. โ€ข Division: Dividing polynomials using long division or synthetic division. ๐Ÿ“ญTheorem on Polynomial Functions โ€ข Remainder Theorem: If a polynomialย  f(x)ย  is divided byย  x - c , the remainder isย  f(c) . โ€ข Factor Theorem: A polynomialย  f(x)ย  has a factorย  x - cย  if and only ifย  f(c) = 0 . ๐Ÿ“ญ Zeros of Polynomial Functions โ€ข Zero of a Polynomial: A valueย  x = cย  such thatย  f(c) = 0 . โ€ข Multiplicity: The number of times a particular zero occurs as a root. ๐Ÿ“ญ Graphs of Polynomial Functions โ€ข End Behavior: Describes how the graph behaves asย  xย  approaches positive or negative infinity. โ€ข Turning Points: Points where the graph changes direction, determined by the degree of the polynomial. ๐Ÿ‡ช๐Ÿ‡นUnit 3: Exponential and Logarithmic Functions โ€ข Exponent: A number that indicates how many times to multiply a base by itself (e.g.,ย  aโฟ = a ร— a ร— ... ร— aย  (n times)). โ€ข Logarithm: The inverse operation to exponentiation, defined asย  logแตฆ(a) = cย  if and only ifย  bแถœ = a . ๐Ÿ“ฌ The Exponential Functions and Their Graphs โ€ข Exponential Function: A function of the formย  f(x) = abหฃ , whereย  a โ‰  0ย  andย  b > 0 . โ€ข Graph Characteristics: Exponential functions grow rapidly; they have horizontal asymptotes. ๐Ÿ“ฌ The Logarithmic Functions and Their Graphs โ€ข Logarithmic Function: A function of the formย  f(x) = logแตฆ(x) , which is the inverse of the exponential function. โ€ข Graph Characteristics: Logarithmic functions increase slowly; they also have vertical asymptotes. ๐Ÿ“ฌ Solving Exponential and Logarithmic Equations โ€ข Methods include using properties of exponents and logarithms, such as: ย ย ย  โ€“ย  b^(logแตฆ(x)) = x ย ย ย  โ€“ย  logแตฆ(xy) = logแตฆ(x) + logแตฆ(y) ๐Ÿ“ฌ Relation between Exponential and Logarithmic Functions โ€ข The relationship is defined by the equations: ย ย ย  โ€“ Ifย  y = bหฃ , thenย  x = logแตฆ(y) . โ€“ They are inverses of each other, reflecting across the lineย  y = x . แŠญแแˆ 2 แ‹ญแ‰€แŒฅแˆ‹แˆ ...
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แ‹จ6แŠ› แŠฅแŠ“ 8แŠ› แŠญแแˆ แŠจแ‰ฐแˆ› แŠ แ‰€แ แˆ˜แˆแˆต แˆ˜แˆตแŒซ แ‹ˆแˆจแ‰€แ‰ต แŠ แŒ แ‰ƒแ‰€แˆ แˆ˜แˆ˜แˆชแ‹ซ แˆˆแ‰ฐแˆ›แˆชแ‹Žแ‰ฝแฃ โžŠ แ‹จแ‰ฐแˆ›แˆชแ‹Žแ‰ฝ แˆ˜แˆˆแ‹ซ แ‰แŒฅแˆญ แŠฅแŠ“ แ‹จแ‰ตแˆแˆ…แˆญแ‰ต แ‹“แ‹ญแАแ‰ต แˆ˜แˆˆแ‹ซ แ‰แŒฅแˆญ แˆˆแŠฅแ‹ซแŠ•แ‹ณแŠ•แ‹ณแ‰ธแ‹ แ‰ แ‰ฐแ‰€แˆ˜แŒ แ‹ แˆณแŒฅแŠ• แ‹แˆตแŒฅ แŠจแˆ‹แ‹ญ แ‹ˆแ‹ฐ+1
แ‹จ6แŠ› แŠฅแŠ“ 8แŠ› แŠญแแˆ แŠจแ‰ฐแˆ› แŠ แ‰€แ แˆ˜แˆแˆต แˆ˜แˆตแŒซ แ‹ˆแˆจแ‰€แ‰ต แŠ แŒ แ‰ƒแ‰€แˆ แˆ˜แˆ˜แˆชแ‹ซ แˆˆแ‰ฐแˆ›แˆชแ‹Žแ‰ฝแฃ โžŠ แ‹จแ‰ฐแˆ›แˆชแ‹Žแ‰ฝ แˆ˜แˆˆแ‹ซ แ‰แŒฅแˆญ แŠฅแŠ“ แ‹จแ‰ตแˆแˆ…แˆญแ‰ต แ‹“แ‹ญแАแ‰ต แˆ˜แˆˆแ‹ซ แ‰แŒฅแˆญ แˆˆแŠฅแ‹ซแŠ•แ‹ณแŠ•แ‹ณแ‰ธแ‹ แ‰ แ‰ฐแ‰€แˆ˜แŒ แ‹ แˆณแŒฅแŠ• แ‹แˆตแŒฅ แŠจแˆ‹แ‹ญ แ‹ˆแ‹ฐ แ‰ณแ‰ฝ แˆ˜แƒแ แŠ แˆˆแ‰ แ‰ตแกแก โท แ‰ แ‰ฐแƒแˆแ‹ แˆ˜แˆˆแ‹ซ แ‰แŒฅแˆญ แŠแ‰ต แˆˆแŠแ‰ต แ‹จแ‰ฐแƒแˆแ‹แŠ• แ‰แŒฅแˆญ แ‹จแ‹ซแ‹˜แ‹แŠ• แŠญแ‰ฅ แ‰ฅแ‰ป แˆ˜แŒ แ‰†แˆญ แŠ แˆˆแ‰ แ‰ตแกแก โžŒ แ‰ฐแˆ›แˆชแ‹Žแ‰ฝ แ‹จแˆ˜แˆจแŒกแ‰ตแŠ• แˆ˜แˆแˆต แ‰ตแ‹ญแ‹ฉ แ‰ แ‰ฐแˆฐแŒ แ‹ แŠญแ‰ฅ แˆ‹แ‹ญ แ‰ แ‰ตแŠญแŠญแˆ แˆ›แŒฅแ‰†แˆญ แŠ แˆˆแ‰ฃแ‰ธแ‹แกแก โน แ‰ฐแˆ›แˆชแ‹Žแ‰ฝ แ‹ซแŒ แ‰†แˆฉแ‰ตแŠ• แˆ˜แˆแˆต แˆ˜แ‰€แ‹จแˆญ แ‰ขแˆแˆแŒ‰ แˆ˜แŒ€แˆ˜แˆชแ‹ซ แ‹ซแŒ แ‰†แˆฉแ‰ตแŠ• แŠญแ‰ฅ แ‰ แ‹ฐแŠ•แ‰ฅ แˆ›แŒฅแ‹แ‰ต แŠ แˆˆแ‰ฃแ‰ธแ‹แกแก โบ แ‰ แŠ แŠ•แ‹ต แˆจแ‹ตแ แŠจแŠ แŠ•แ‹ต แ‰ แˆ‹แ‹ญ แŠญแ‰ฅ แˆ›แŒฅแ‰†แˆญ แ‹จแ‰ฐแŠจแˆˆแŠจแˆˆ แАแ‹แกแก โป แˆˆแˆ˜แƒแ แŠฅแŠ“ แˆˆแˆ›แŒฅแ‰†แˆญ แŠจแ‰ฐแˆแ‰€แ‹ฐแ‹ แ‰ฆแ‰ณ แ‹แŒญ แˆแŠ•แˆ แŠ แ‹ญแАแ‰ต แ…แˆแแˆ แˆ†แА แŒญแˆจแ‰ต แˆ›แ‹ตแˆจแŒ แ‹จแ‰ฐแŠจแˆˆแŠจแˆˆ แАแ‹แกแก โผ แˆˆแˆ˜แƒแ แŠจแ‰ฐแˆแ‰€แ‹ฐแ‹ แ‰ฆแ‰ณ แ‹แŒญ แ‰ฐแ…แŽ แ‹ˆแ‹ญแˆ แ‰ตแŠ•แˆฝ แŒญแˆจแ‰ต แŠฅแŠ“ แАแŒฅแ‰ฅ แŠจแ‰ฐแŒˆแŠ˜ แ‹จแˆ˜แˆแˆต แˆ˜แˆตแŒซ แ‹ˆแˆจแ‰€แ‰ฑ แˆ™แˆ‰ย  แ‰ แˆ™แˆ‰ แ‰ฐแ‰€แ‰ฃแ‹ญแАแ‰ต แŠ แ‹ญแŠ–แˆจแ‹แˆแกแก โฝ แˆ˜แˆแˆต แ‰ แˆšแŒ แ‰†แˆญแ‰ แ‰ต แŒŠแ‹œ แŠฅแˆญแˆณแˆฑ แŠจแ‰ฐแˆฐแŒ แ‹ แ‹จแŠญแ‰ฅ แˆณแŒฅแŠ• แˆ˜แ‹แŒฃแ‰ต แ‹จแˆˆแ‰ แ‰ตแˆแข แŠจแ‹ˆแŒฃแˆ แ‰ แˆ›แŒฅแŠแ‹ซ (Eraser/Rubber) แˆ›แŒฅแ‹แ‰ต แ‹ญแŒ แ‰ แ‰…แ‰ฃแ‰ฝแŠ‹แˆแข โพ แˆ˜แˆแˆต แˆ˜แˆตแŒซ แŠฎแˆญแАแˆญ แˆ‹แ‹ญ แ‹ซแˆ‰แ‰ตแŠ• แŠ แˆซแ‰ต แŒ แˆญแ‹žแ‰ฝ แˆ˜แŠ•แŠซแ‰ตแˆ แˆแŒฝแˆž แ‹จแ‰ฐแŠจแˆˆแŠจแˆˆ แАแ‹แกแก โž“ แ‰ฐแˆแ‰ณแŠžแ‰ฝ แ‹จแˆ˜แˆแˆต แˆ˜แˆตแŒซ แ‹ˆแˆจแ‰€แ‰ณแ‰ธแ‹แŠ• แ‰ แŠ•แ…แˆ…แŠ“ แˆ˜แ‹ซแ‹ แŠ แˆˆแ‰ฃแ‰ธแ‹ แˆ›แˆˆแ‰ตแˆ แŠฅแŠ•แ‹ณแ‹ญแ‰†แˆฝแˆฝแฃ แŠฅแˆญแŒฅแ‰ แ‰ตย  แŠฅแŠ•แ‹ณแ‹ญแАแŠซแ‹แค แŠฅแŠ•แ‹ณแ‹ญแ‰€แ‹ฐแ‹ต แŠฅแŠ“ แŠฅแŠ•แ‹ณแ‹ญแ‰ณแŒ แ แˆ˜แŒ แŠ•แ‰€แ‰…แŠ“ แˆ™แˆ‰ แŠƒแˆ‹แŠแАแ‰ต แˆ˜แ‹แˆฐแ‹ต แŠ แˆˆแ‰ฃแ‰ธแ‹แกแก โ“ซ แ‰ แŠฅแˆตแŠญแˆชแ‰ฅแ‰ถ แˆ˜แƒแ แŠ แ‹ญแˆแ‰€แ‹ตแˆแข แˆตแˆˆแ‹šแˆ… แŠฅแˆญแˆณแˆตแฃ แˆ‹แŒฒแˆต แŠฅแŠ“ แˆ˜แ‰…แˆจแŒซ แŠ แ‹ญแˆˆแ‹ซแ‰ฝแˆ โ“ฌ แˆแ‰ฐแŠ“ แŒจแˆจแˆตแŠฉ แ‰ฅแˆŽ แŠ แˆ‹แˆตแˆแˆ‹แŒŠ แ‹จแˆ†แА แАแŒˆแˆญแค แˆตแ‹•แˆ แ‹ˆแ‹ญแˆ แˆŒแˆ‹ แŠจแŒ€แˆญแ‰ฃแˆ แ‹ญแˆแŠ• แŠจแŠแ‰ต แŠ แ‹ญแƒแแ‰ แ‰ตแˆแข โ“ญ แ‰ แŒฃแˆ แ‹จแ‰ฐแ‰€แˆจแ€ แˆนแˆ แŠฅแˆญแˆณแˆต แ‰ แˆแŠ•แŒ แ‰€แˆ แ‹ˆแ‰…แ‰ต แ‹ˆแˆจแ‰€แ‰ฑ แŠฅแŠ•แ‹ณแ‹ญแ‰€แ‹ฐแ‹ต แˆ˜แŒ แŠ•แ‰€แ‰… แŠ แˆˆแ‰ฅแŠ•แข
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โ€‹โœจ แŠ แŠ•แ‹ต แАแŒˆแˆญ แŠ แ‰ตแˆญแˆฑ! แŒฅแ‹ซแ‰„แ‹Žแ‰นแŠ• แˆ˜แˆˆแˆณแ‰ฝแˆ แˆตแ‰ณแ‰ แ‰ Submit แ‹จแˆšแˆˆแ‹แŠ• แˆตแ‰ตแŒซแŠ‘ แ‹แŒคแ‰ณแ‰ฝแˆแŠ• แ‰ แ‰€แŒฅแ‰ณ แˆ›แ‹จแ‰ต แ‰ตแ‰ฝแˆ‹แˆ‹แ‰ฝแˆแข โ€‹แ‰ แˆแ‰ฐแŠ“แ‹ แˆ‹แ‹ญ แ‹จแˆแ‰ตแˆฐแˆฏแ‰ธแ‹ แˆตแˆ…แ‰ฐแ‰ถแ‰ฝ แ‹ˆแ‹ฐ แ‰ตแŠญแŠญแˆˆแŠ›แ‹ แˆตแŠฌแ‰ต แ‹จแˆšแ‹ซแ‹ฐแˆญแˆทแ‰ฝแˆ แˆ˜แˆ›แˆชแ‹ซแ‹Žแ‰ฝ แŠ“แ‰ธแ‹แŠ“ แ‰ แˆแ‰  แˆ™แˆ‰แАแ‰ต แˆžแŠญแˆฉแ‰ตแข แ‰ณแˆ‹แ‰… แ‹แŒคแ‰ต แŠฅแŠ•แ‹ฐแˆแ‰ณแˆ˜แŒก แŠ แŠ•แŒ แˆซแŒ แˆญแˆแค แˆ˜แˆแŠซแˆ แ‹•แ‹ตแˆ แˆˆแˆแˆ‹แ‰ฝแˆแˆ! ๐Ÿš€ โœ… join ๐Ÿ‘‡ https://t.me/Aksipspg
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โ€‹๐Ÿšจ แˆˆ12แŠ› แŠญแแˆ แ‰ฐแˆแ‰ณแŠžแ‰ฝ! แ‰ Google Form แ‹จแ‰ฐแ‹˜แŒ‹แŒแ‰ตแŠ• แ‹จBiology แ‹จแˆแ‰ฐแŠ“ แŒฅแ‹ซแ‰„แ‹Žแ‰ฝ แˆŠแŠ•แŠฉแŠ• แ‰ แˆ˜แŠ•แŠซแ‰ต แŒˆแ‰ฅแ‰ณแ‰ฝแˆ แŠฅแŠ•แ‹ตแ‰ตแˆžแŠญแˆฉ แŠฅแŠ•แŒ‹แ‰ฅแ‹›แˆˆแŠ•แข ๐Ÿ‘‡๐Ÿ‘‡๐Ÿ‘‡ https://docs.google.com/forms/d/e/1FAIpQLSeg7WoQNRqQIVSirebRknsopChgKfrz9TEmygSEOKJAjJQrjg/viewform?usp=header
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แˆˆ12แŠ› แŠญแแˆ แ‰ฐแˆแ‰ณแŠžแ‰ฝ! แ‰ Google Form แ‹จแ‰ฐแ‹˜แŒ‹แŒแ‰ตแŠ• แ‹จphysics แ‹จแˆแ‰ฐแŠ“ แŒฅแ‹ซแ‰„แ‹Žแ‰ฝ แˆŠแŠ•แŠฉแŠ• แ‰ แˆ˜แŠ•แŠซแ‰ต แŒˆแ‰ฅแ‰ณแ‰ฝแˆ แŠฅแŠ•แ‹ตแ‰ตแˆžแŠญแˆฉ แŠฅแŠ•แŒ‹แ‰ฅแ‹›แˆˆแŠ•แข ๐Ÿ‘‡๐Ÿ‘‡๐Ÿ‘‡ https://docs.google.com/forms/d/e/1FAIpQLScIz2lossnsY5IEREFiDItLLyaXWI8meFXH1xmkQnPWUEJ-og/viewform?usp=header
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แˆˆ12แŠ› แŠญแแˆ แ‰ฐแˆแ‰ณแŠžแ‰ฝ! แ‰ Google Form แ‹จแ‰ฐแ‹˜แŒ‹แŒแ‰ตแŠ• แ‹จAPTITUDE แ‹จแˆแ‰ฐแŠ“ แŒฅแ‹ซแ‰„แ‹Žแ‰ฝ แˆŠแŠ•แŠฉแŠ• แ‰ แˆ˜แŠ•แŠซแ‰ต แŒˆแ‰ฅแ‰ณแ‰ฝแˆ แŠฅแŠ•แ‹ตแ‰ตแˆžแŠญแˆฉ แŠฅแŠ•แŒ‹แ‰ฅแ‹›แˆˆแŠ•แข ๐Ÿ‘‡๐Ÿ‘‡๐Ÿ‘‡ https://docs.google.com/forms/d/e/1FAIpQLSdPVG240JA7htRybQACHtiLboIJhrA2iLjvJ4C_xmt276UCXg/viewform?usp=header
458
17
แŠฅแАแ‹šแˆ…แŠ• แ‹จแ‹ซแ‹˜ แ‰ฐแˆ›แˆช แ‰ แ‰ตแŠ•แˆน แŠขแŠ•แ‰ตแˆซแŠ•แˆต แˆ‹แ‹ญ 50 แŒฅแ‹ซแ‰„ย  แ‹ญแˆฐแˆซแˆ แข ๐Ÿ“˜แŠ แŠ•แ‹ต แ‹จ12แŠ› แŠญแแˆ แ‰ฐแˆ›แˆช แˆŠแ‹ซแ‹แ‰ƒแ‰ธแ‹ แ‹จแˆšแŒˆแ‰ก แ‹จ Maths แŽแˆญแˆ™แˆ‹แ‹Žแ‰ฝ ๐Ÿ‘‰Arithmetic 1. Basic Operations: ย ย  โ€ข Addition:ย  a + b ย ย  โ€ข Subtraction:ย  a - b ย ย  โ€ข Multiplication:ย  a ร— bย  orย  ab ย ย  โ€ข Division:ย  a/b 2. Percentage: Percentage = Part / Whol} ร— 100 ๐Ÿ‘‰Algebra 1. Quadratic Formula: x = -b ยฑ โˆš(bยฒ - 4ac) / 2a forย  axยฒ + bx + c = 0 . 2. Factoring Formulas: ย ย  โ€ข Difference of Squares:ย  aยฒ - bยฒ = (a - b)(a + b) ย ย  โ€ข Perfect Square Trinomial:ย  aยฒ + 2ab + bยฒ = (a + b)ยฒ 3. Exponents: ย ย  โ€ขย  aแต ร— aโฟ = aแตโบโฟ ย ย  โ€ขย  aแต/aโฟ = aแตโปโฟ ย ย  โ€ขย  (aแต)โฟ = aแตโฟ 4. Logarithms: ย ย  โ€ข Change of Base:ย  logแตฆ a = (logโ‚– a)/(logโ‚– b) ย ย  โ€ขย  logแตฆ (xy) = logแตฆ x + logแตฆ y ย ย  โ€ขย  logแตฆ ((x/y)) = logแตฆ x - logแตฆ y ๐Ÿ‘‰Geometry 1. Area Formulas: ย ย  โ€ข Rectangle:ย  A = l ร— w ย ย  โ€ข Triangle:ย  A = ยฝ b h ย ย  โ€ข Circle:ย  A = ฯ€ rยฒ 2. Perimeter Formulas: ย ย  โ€ข Rectangle:ย  P = 2(l + w) ย ย  โ€ข Triangle:ย  P = a + b + c ย ย  โ€ข Circle (Circumference):ย  C = 2ฯ€ r 3. Volume Formulas: ย ย  โ€ข Cube:ย  V = sยณ ย ย  โ€ข Rectangular Prism:ย  V = lwh ย ย  โ€ข Cylinder:ย  V = ฯ€ rยฒ h ย ย  โ€ข Sphere:ย  V = 4/3 ฯ€ rยณ 4. Pythagorean Theorem: aยฒ + bยฒ = cยฒ for a right triangle. ๐Ÿ‘‰Trigonometry 1. Basic Trigonometric Ratios: ย ย  โ€ข Sine:ย  sin(ฮธ) = Opposite/Hypotenuse ย ย  โ€ข Cosine:ย  cos(ฮธ) = Adjacent/Hypotenuse ย ย  โ€ข Tangent:ย  tan(ฮธ) = Opposite/Adjacent 2. Pythagorean Identity: sinยฒ(ฮธ) + cosยฒ(ฮธ) = 1 3. Angle Sum and Difference Formulas: ย ย  โ€ข Sine: ย ย ย ย  โ€ขย  sin(a + b) = sin a cos b + cos a sin b ย ย ย ย  โ€ขย  sin(a - b) = sin a cos b - cos a sin b ย ย  โ€ข Cosine: ย ย ย ย  โ€ขย  cos(a + b) = cos a cos b - sin a sin b ย ย ย ย  โ€ขย  cos(a - b) = cos a cos b + sin a sin b ๐Ÿ‘‰Calculus 1. Derivatives: ย ย  โ€ข Power Rule:ย  f'(x) = nxโฟโปยน ย ย  โ€ข Sum Rule:ย  (f + g)' = f' + g' ย ย  โ€ข Product Rule:ย  (fg)' = f'g + fg' ย ย  โ€ข Quotient Rule:ย  ((f/g))' = (f'g - fg')/gยฒ 2. Integrals: ย ย  โ€ข Indefinite Integral: โˆซxโฟ dx = xโฟโบยน / n+1 + C, n โ‰  -1 โ€ข Definite Integral: A = โˆซโ‚แต‡ f(x) dx ๐Ÿ‘‰Statistics 1. Mean (Average): Mean = โˆ‘ xแตข / n 2. Median: ย ย  โ€ข Middle value when data is ordered. 3. Mode: ย ย  โ€ข Most frequently occurring value. 4. Standard Deviation: ย ย  For population: ฯƒ = โˆš((โˆ‘ (xแตข - ฮผ)ยฒ)N)/(``) For sample: https://t.me/Aksipspg
3 546
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+7
แˆˆNatural แ‰ฐแˆ›แˆชแ‹Žแ‰ฝ แ‰ แ‰€แˆซแ‰ฝแˆ แŒŠแ‹œ แˆ™แˆ‰ แŠจ9-12 แ‹ซแˆˆแ‹แŠ• แˆˆแˆ˜แŠจแˆˆแˆต แŠฅแŠ“ แŒฅแ‹ซแ‰„แ‹Žแ‰ฝ แˆˆแˆ˜แˆตแˆซแ‰ต แ‹ญแˆจแ‹ณแ‰ฝแŠƒแˆ ๐Ÿฅณ
6 425
19
+1
โœ… แŠจ1- 52 แˆ˜แˆแˆต แŠจแŠฅแАแˆ›แ‰ฅแˆซแˆชแ‹ซแ‹ แ‰ฐแ‹˜แŒ‹แŒ…แ‰ทแˆแข ๐Ÿ‘‡๐Ÿ‘‡
772
20
+1
โœ… แŠจ1- 58 แˆ˜แˆแˆต แŠจแŠฅแАแˆ›แ‰ฅแˆซแˆชแ‹ซแ‹ แ‰ฐแ‹˜แŒ‹แŒ…แ‰ทแˆแข ๐Ÿ‘‡๐Ÿ‘‡
742