What is simplify-(2cos(npi))/n ?

The solution to simplify-(2cos(npi))/n is -(2(-1)^n)/n

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simplify-(2cos(npi))/n

simplify

- \frac{2 cos ( nπ )}{n}

- \frac{2 ( - 1 ) ^{n}}{n}

Solution steps

- \frac{2 cos ( nπ )}{n}

Use the basic trigonometric identity:

cos (nπ) = (- 1)^{n}

= - \frac{2 ( - 1 ) ^{n}}{n}

cos (4 π t) \cdot sin (4 π t)

\frac{1}{4} tan (x - \frac{π}{4})

1 + tan^{2} (C)

\frac{d x}{sin ( x )}

cos (- \frac{3 π}{2} + x)

What is simplify-(2cos(npi))/n ?
The solution to simplify-(2cos(npi))/n is -(2(-1)^n)/n