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Popular >

simplify-cos(pin)

Solution

simplify

- cos (πn)

Solution

- (- 1)^{n}

Solution steps

- cos (πn)

Use the basic trigonometric identity:

cos (nπ) = (- 1)^{n}

= - (- 1)^{n}

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Frequently Asked Questions (FAQ)

What is simplify-cos(pin) ?
The solution to simplify-cos(pin) is -(-1)^n