What is expand (2(-sin(z)(z+1)-cos(z)))/((z+1)^2) ?

The solution to expand (2(-sin(z)(z+1)-cos(z)))/((z+1)^2) is (-2zsin(z)-2sin(z)-2cos(z))/(z^2+2z+1)

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expand (2(-sin(z)(z+1)-cos(z)))/((z+1)^2)

expand

\frac{2 ( - sin ( z ) ( z + 1 ) - cos ( z ) )}{( z + 1 ) ^{2}}

\frac{- 2 z sin ( z ) - 2 sin ( z ) - 2 cos ( z )}{z ^{2} + 2 z + 1}

Solution steps

\frac{2 ( - sin ( z ) ( z + 1 ) - cos ( z ) )}{( z + 1 ) ^{2}}

(z + 1)^{2} = z^{2} + 2 z + 1

= \frac{2 ( - sin ( z ) ( z + 1 ) - cos ( z ) )}{z ^{2} + 2 z + 1}

Expand

- sin (z) (z + 1) - cos (z) : - z sin (z) - sin (z) - cos (z)

= \frac{2 ( - z sin ( z ) - sin ( z ) - cos ( z ) )}{z ^{2} + 2 z + 1}

Expand

2 (- z sin (z) - sin (z) - cos (z)) : - 2 z sin (z) - 2 sin (z) - 2 cos (z)

= \frac{- 2 z sin ( z ) - 2 sin ( z ) - 2 cos ( z )}{z ^{2} + 2 z + 1}

(\frac{x}{2} + y^{2})^{12}

\frac{d}{d s} ((k) (- (3 s^{2} + 10 s + 4)))

\frac{x + 2}{x ( x + 10 )}

5 (\frac{13 - 4 y}{7} - 2 y = 19)

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

What is expand (2(-sin(z)(z+1)-cos(z)))/((z+1)^2) ?
The solution to expand (2(-sin(z)(z+1)-cos(z)))/((z+1)^2) is (-2zsin(z)-2sin(z)-2cos(z))/(z^2+2z+1)