What is expand 4/((e^x+e^{-x))^2} ?

The solution to expand 4/((e^x+e^{-x))^2} is 4/(e^{2x)+2+e^{-2x}}

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expand 4/((e^x+e^{-x))^2}

expand

\frac{4}{( e ^{x} + e ^{- x} ) ^{2}}

\frac{4}{e ^{2 x} + 2 + e ^{- 2 x}}

Solution steps

\frac{4}{( e ^{x} + e ^{- x} ) ^{2}}

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

= \frac{4}{e ^{2 x} + 2 + e ^{- 2 x}}

(x - 3) (x + 1)^{'}

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

(x + 1 + x^{2})^{2}

\frac{x ^{2} + 5}{x ^{3} ( x ^{2} + 4 )}

(x^{2} ln (x)) d y + (x y - 1) d x

What is expand 4/((e^x+e^{-x))^2} ?
The solution to expand 4/((e^x+e^{-x))^2} is 4/(e^{2x)+2+e^{-2x}}