现已上线！2025 年 Telegram 研究 — 年度关键洞察 
MATHS 🧮 LAB 🔬
前往频道在 Telegram
🧮 Maths Lab 🧮 Explore mathematics through concepts, problem-solving, tricks, and visual learning. From basics to advanced ideas — learn, practice, and think mathematically. 🚀
显示更多未指定国家未指定类别
313
订阅者
+124 小时
-17 天
+230 天
帖子存档
Pi is an irrational number, not a rational number. It cannot be expressed as a simple fraction p/q of two integers, and its decimal representation is infinite and non-repeating 3.14159... Common approximations like 22/7 or 3.14 are rational, but they are not equal to the exact value of pi
@edmathlab
Vertically opposite angles, formed when two lines intersect, are always congruent, meaning they have identical measurements and are equal. Located across from each other at a shared vertex, these non-adjacent pairs (e.g., in an 'X' shape) are always equal in measure. This property holds true because they are supplementary to the same adjacent angle.
@edmathlab
If the expression (ϰ - 1) (ϰ + 2) = 6, then ϰ – 1 = 6, or ϰ + 2 = 6.
