Find all solutions to the equation in the interval [0,2pi]: cos(x)=sin(2x)
Check this out:
https://socratic.org/questions/how-do-you-find-all-solutions-for-sin-2x-cos-x-for-the-interval-0-2pi
sin (2x) = 2 sinx cos x
2 sinx cosx = cos x divide by cos x
2 sinx = 1
sinx = 1/2 can you take it from here?????
+36915 
