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Popular >

(cos(pi))^2

Solution

(cos (π))^{2}

Solution

1

Solution steps

(cos (π))^{2}

= cos^{2} (π)

Use the following trivial identity:

cos (π) = (- 1)

= (- 1)^{2}

Simplify

(- 1)^{2} : 1

= 1

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Frequently Asked Questions (FAQ)

What is the value of (cos(pi))^2 ?
The value of (cos(pi))^2 is 1