Maths Olympiad Daily Problems

give a solution without using chebyshevs polynomial(bcz idk what that is)

Hello everyone! I just wanted to inform all my friends that I will be taking a break from Olympiad mathematics (MO) for some time to focus on JEE preparation. Because of this, I will also be much less active on Telegram. So I kindly request everyone not to tag me or ask questions during this period. Thank you for understanding. Signing off, Utkarsh

Try this guys

Try this guys

How many four-digit positive integers are there such that the product of their digits is divisible by 4?

Yelo Isreal TST year 2022 or 2023 or 2024 I don't remember

MEMO 2015, problem T-7 Easy maybe RMO lvl ig