What is expand cos^2(x)-cos(x)-1 ?

The solution to expand cos^2(x)-cos(x)-1 is -cos(x)-sin^2(x)

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expand cos^2(x)-cos(x)-1

expand

cos^{2} (x) - cos (x) - 1

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

Solution steps

cos^{2} (x) - cos (x) - 1

Use the Pythagorean identity:

1 = cos^{2} (x) + sin^{2} (x)

1 - cos^{2} (x) = sin^{2} (x)

= - cos (x) - sin^{2} (x)

\frac{( x - 2 ) ( x + 2 )}{x ^{2} + 1}

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

\frac{( - 5 x ^{8} + 1 ) ^{4}}{x ^{28}}

((A + A^{^{'}}) + B) D

- 0.25 (1 - x) ln (1 - x)

What is expand cos^2(x)-cos(x)-1 ?
The solution to expand cos^2(x)-cos(x)-1 is -cos(x)-sin^2(x)