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Question

(cos3x)^2+(sin3x)^2=cos(f(x))

find f(x)
12 years ago

Answers

Damon
cos anything^2 + sin same thing^2 = 1
so cos (f(x)) = 1
f(x) = 0 or 360 or 720 .........
12 years ago
Damon
Hey, Steve already answered that for you.
12 years ago

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