Question
(cos3x)^2+(sin3x)^2=cos(f(x))
find f(x)
find f(x)
Answers
Damon
cos anything^2 + sin same thing^2 = 1
so cos (f(x)) = 1
f(x) = 0 or 360 or 720 .........
so cos (f(x)) = 1
f(x) = 0 or 360 or 720 .........
Damon
Hey, Steve already answered that for you.