Hi,

I've asked for a list of questions from a teacher to do over the holidays. I'm struggling to use the text book to help me.

Could someone provide HOW to do these questions, as I just want to get an idea of what I'm getting next year.

Thanks.

9. Solve for $\displaystyle 0 <= x <= 2pi$

a) $\displaystyle sin2x = cosx$

b) $\displaystyle 1+sinx=cos2x$

c) $\displaystyle cos2x=sinx$

d) $\displaystyle cos^2x+2cosxsinx-sin^2x=0$