What is expand (2(pi))/((1-pi^2)^2) ?

The solution to expand (2(pi))/((1-pi^2)^2) is (2pi)/(1-2pi^2+pi^4)

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expand (2(pi))/((1-pi^2)^2)

expand

\frac{2 ( π )}{( 1 - π ^{2} ) ^{2}}

\frac{2 π}{1 - 2 π ^{2} + π ^{4}}

Decimal Notation

0.07986 \dots

Solution steps

\frac{2 ( π )}{( 1 - π ^{2} ) ^{2}}

Remove parentheses:

(a) = a

= \frac{2 π}{( 1 - π ^{2} ) ^{2}}

(1 - π^{2})^{2} = 1 - 2 π^{2} + π^{4}

= \frac{2 π}{1 - 2 π ^{2} + π ^{4}}

\frac{( e ^{3 s} ( 3 s + 6 ) )}{( s ^{2} + 4 )}

\frac{- x + 7}{x ( x + 7 ) ( x - 1 ) ^{2} ( x + 1 )}

\frac{x}{Δ y ( y + Δ y ) ^{2}}

\frac{x ^{4} - ( m + 2 ) x ^{3} + m x ^{2} + x + m ^{2} + m}{x - m - 1}

10 (e^{\frac{x}{20}} + e^{- \frac{x}{20}})

What is expand (2(pi))/((1-pi^2)^2) ?
The solution to expand (2(pi))/((1-pi^2)^2) is (2pi)/(1-2pi^2+pi^4)