Find all solutions to the equation in the interval [0,2pi].
sin2x - sin4x=0

I'm terrible at math any here is appreciated.

Which function families have maximums and minimums? 1.)linear absolute value functions and exponential functions 2.) linear absolute value functions and quadratic functions 3.) linear absolute value functions and linear functions 4.) linear absolute value functions and constant functions

Write the expression as a constant , a single trigonometric function, or a power of a trigonometric function. sin x cos x/ tan x