What is expand 1/((1+kcos(x))^2) ?

The solution to expand 1/((1+kcos(x))^2) is 1/(1+2kcos(x)+k^2cos^2(x))

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expand 1/((1+kcos(x))^2)

expand

\frac{1}{( 1 + k cos ( x ) ) ^{2}}

\frac{1}{1 + 2 k cos ( x ) + k ^{2} cos ^{2} ( x )}

Solution steps

\frac{1}{( 1 + k cos ( x ) ) ^{2}}

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

= \frac{1}{1 + 2 k cos ( x ) + k ^{2} cos ^{2} ( x )}

e^{2 t} (2 - t - 2 e^{- t})

((x - 2 L)^{2})^{2}

25 π (2 - \frac{x}{4})^{2}

\frac{- 5}{( 3 - 2 ) ^{2}}

5 (\frac{d ^{3}}{d t ^{3}} (t^{3})) (1 - sin (4 t))

What is expand 1/((1+kcos(x))^2) ?
The solution to expand 1/((1+kcos(x))^2) is 1/(1+2kcos(x)+k^2cos^2(x))