What is simplify-1+cos(2x+pi) ?

The solution to simplify-1+cos(2x+pi) is -2cos^2(x)

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simplify-1+cos(2x+pi)

simplify

- 1 + cos (2 x + π)

- 2 cos^{2} (x)

Solution steps

- 1 + cos (2 x + π)

Rewrite using trig identities

= - 1 - cos (2 x)

Rewrite using trig identities

= - 2 cos^{2} (x)

sin (arctan (2 x))

\frac{cos ( nπ )}{n ^{2}}

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

cos (sin (- 1 (x)))

sin (t + 2 π)

What is simplify-1+cos(2x+pi) ?
The solution to simplify-1+cos(2x+pi) is -2cos^2(x)