What is expand 2/((e^t+e^{-t))^2} ?

The solution to expand 2/((e^t+e^{-t))^2} is 2/(e^{2t)+2+e^{-2t}}

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expand 2/((e^t+e^{-t))^2}

expand

\frac{2}{( e ^{t} + e ^{- t} ) ^{2}}

\frac{2}{e ^{2 t} + 2 + e ^{- 2 t}}

Solution steps

\frac{2}{( e ^{t} + e ^{- t} ) ^{2}}

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

= \frac{2}{e ^{2 t} + 2 + e ^{- 2 t}}

(x - 5) (x + 5) (x - 4)

(3 m - 1) l e f t (2 m + 1)

(1 + 3 sin (2 x)) cos (2 x)

\frac{5 s ^{2} - 2 s - 3}{( s ^{2} + 1 ) ( s ^{2} - 2 s + 5 )}

What is expand 2/((e^t+e^{-t))^2} ?
The solution to expand 2/((e^t+e^{-t))^2} is 2/(e^{2t)+2+e^{-2t}}