QuestionWrite the expression in terms of first powers of cosine. Do not use decimals in your answer. Make sure to simplify as much as possible. $$\sin ^{4} x=$$ $\square$
$\cos$ $\square$

Studdy Solution
The expression is now written in terms of first powers of cosine:
$$\sin^4 x = 1 - 2\cos^2 x + \cos^4 x$$
This is the simplified expression in terms of cosine.