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Popular >

simplify (-cos(3x))^2

Solution

simplify

(- cos (3 x))^{2}

Solution

cos^{2} (3 x)

Solution steps

(- cos (3 x))^{2}

Apply exponent rule:

(- a)^{n} = a^{n},

if

n

is even

(- cos (3 x))^{2} = cos^{2} (3 x)

= cos^{2} (3 x)

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Frequently Asked Questions (FAQ)

What is (-cos(3x))^2 ?
The solution to (-cos(3x))^2 is cos^2(3x)