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Popular >

simplify 1/(cos(npi))

Solution

simplify

\frac{1}{cos ( nπ )}

Solution

\frac{1}{( - 1 ) ^{n}}

Solution steps

\frac{1}{cos ( nπ )}

Use the basic trigonometric identity:

cos (nπ) = (- 1)^{n}

= \frac{1}{( - 1 ) ^{n}}

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Frequently Asked Questions (FAQ)

What is 1/(cos(npi)) ?
The solution to 1/(cos(npi)) is 1/((-1)^n)