What is expand ((1-cos(h))^2)/h ?

The solution to expand ((1-cos(h))^2)/h is 1/h-(2cos(h))/h+(cos^2(h))/h

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expand ((1-cos(h))^2)/h

expand

\frac{( 1 - cos ( h ) ) ^{2}}{h}

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

Solution steps

\frac{( 1 - cos ( h ) ) ^{2}}{h}

(1 - cos (h))^{2} = 1 - 2 cos (h) + cos^{2} (h)

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

Apply the fraction rule:

\frac{a \pm b}{c} = \frac{a}{c} \pm \frac{b}{c}

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

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

\frac{1}{( ( a ) + 3 ) ^{2}}

\frac{8 z ^{2}}{( 2 z - 1 ) ( 4 z - 3 )}

(3 x - 2) 3 \cdot e^{3}

\frac{3 ( x + 3 )}{2 ( 3 x + 5 )}

\frac{k p ( s + N ) + N k d s}{s + N}

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