general formula for sinx is x=180n+(-1)^n .a (general formula for sinx)I got MC 10 down to b or c and guessed c (didn't have time to do it properly) and fucks me how to do 6.
so the formula for sin2x would be 2x= 180n+(-1)^n .a (same thing)
so its x= general formula/2 (which is b))