UKGMT A Hard Circle and Square Problem
Question Show that cos^4(x)-sin^4(x)=cos(2x) Answer We use the identities below. (you should know them by heart) sin^2(x) +…
Question Does anybody know where i can find the properties below? (a+b)^3 (a+b)^4 Answer (…
Question Triangle ABC has AC = BC, angle(ACB) = 96 degrees. D is a point in triangle…
(Here’s a detailed possible solution with full explanations for IMO 2016’s Problem 4): *IMO = International Mathematical Olympiad
Question John saved $600 and Carla saved $550 into a savings account. John found an account that would…
Question 576 digits are used to record the number of cars at a car park. How many…