When theta is small, find an approximation for cos 3theta+ sin 2theta giving your answer in the form a + btheta^2

What expression is equivalent to 1/2(2+3x-6)

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

Solving algebraic equations 2m+3=11