What is simplify-(cos(npi(1)))/(npi) ?

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

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simplify-(cos(npi(1)))/(npi)

simplify

- \frac{cos ( nπ ( 1 ) )}{nπ}

- \frac{( - 1 ) ^{n}}{πn}

Solution steps

- \frac{cos ( nπ ( 1 ) )}{nπ}

Use the basic trigonometric identity:

cos (nπ) = (- 1)^{n}

= - \frac{( - 1 ) ^{n}}{πn}

\frac{sec ( x ) d x}{tan ^{2} ( x )}

3 x cos (x^{2} - \frac{π}{2})

csc (x - 27 0^{\circ})

sin (- x) sin (π - x) - 1

sin (arcsin (\frac{x}{a}))

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