1. The problem statement, all variables and given/known data Hey, so i need some help trying to find the local max and min points for y = sinxcox3x 2. Relevant equations 3. The attempt at a solution I know i need to find the first and 2nd derivative but i do not know if i am doing it right. I also do not know what to do after wards. my first derivative ends up being cos^2x(cos^2x - 3sin^2x) what do i do after this to solve my question. Help would be appreciated.