What is simplify-(cos(pin))/(pin) ?

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

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simplify-(cos(pin))/(pin)

simplify

- \frac{cos ( πn )}{πn}

- \frac{( - 1 ) ^{n}}{πn}

Solution steps

- \frac{cos ( πn )}{πn}

Use the basic trigonometric identity:

cos (nπ) = (- 1)^{n}

= - \frac{( - 1 ) ^{n}}{nπ}

5 cos (2 t + \frac{π}{6})

- csc (9 0^{\circ} + θ)

b^{2} - b^{2} sin^{2} (x)

sin^{2 x} (- 1)

cos (- 3 t + \frac{π}{5})

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