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受欢迎的代数 >

展开-2e^{-n^2pi^2}-(e^{-t(-pi^2n^2+1)}-1)/(-pi^2n^2+1)

解答

展开

- 2 \cdot e^{- n^{2} \cdot π^{2}} - \frac{e ^{- t (- π^{2} n^{2} + 1)} - 1}{- π ^{2} n ^{2} + 1}

解答

- 2 e^{- π^{2} n^{2}} - \frac{e ^{π^{2} n^{2} t - t} - 1}{- π ^{2} n ^{2} + 1}

求解步骤

- 2 e^{- n^{2} π^{2}} - \frac{e ^{- t (- π^{2} n^{2} + 1)} - 1}{- π ^{2} n ^{2} + 1}

乘开

- t (- π^{2} n^{2} + 1) : π^{2} n^{2} t - t

= - 2 e^{- π^{2} n^{2}} - \frac{e ^{π^{2} n^{2} t - t} - 1}{- π ^{2} n ^{2} + 1}

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