Question

What is the period and the fundamental period of `y(x) = sin(2x) + cos(4x)`?

Answer 1

Y(x) is a sum of two trignometric functions. The period of sin 2x would be `(2pi)/2` that is `pi` or 180 degrees. Period of cos4x would be `(2pi)/4` that is `pi/2`,or 90 degrees.

Find the LCM of 180 and 90. That would be 180. Hence the period of the given function would be `pi`