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

The solution to simplify-2/(pin)2cos(npi) is -(4(-1)^n)/(pin)

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simplify-2/(pin)2cos(npi)

simplify

- \frac{2}{πn} 2 cos (nπ)

- \frac{4 ( - 1 ) ^{n}}{πn}

Solution steps

- \frac{2}{πn} \cdot 2 cos (nπ)

Use the basic trigonometric identity:

cos (nπ) = (- 1)^{n}

= - 2 (- 1)^{n} \frac{2}{nπ}

Simplify

= - \frac{4 ( - 1 ) ^{n}}{πn}

tan (\frac{- 7 x}{6})

(tan (\frac{π}{2} + θ) x + y)^{2}

tan (arccos (\frac{x}{14}))

sin (sin (x + 2 π))

2 cos (x) + 7 cos (4 5^{\circ} - x)

What is simplify-2/(pin)2cos(npi) ?
The solution to simplify-2/(pin)2cos(npi) is -(4(-1)^n)/(pin)