What is (d^2)/(dx^2)(21e^{1/x}) ?

The answer to (d^2)/(dx^2)(21e^{1/x}) is -(21(-e^{1/x}-2e^{1/x}x))/(x^4)

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(d^2)/(dx^2)(21e^{1/x})

\frac{d ^{2}}{d x ^{2}} (21 e^{\frac{1}{x}})

- \frac{21 ( - e ^{\frac{1}{x}} - 2 e ^{\frac{1}{x}} x )}{x ^{4}}

Solution steps

\frac{d ^{2}}{d x ^{2}} (21 e^{\frac{1}{x}})

\frac{d}{d x} (21 e^{\frac{1}{x}}) = - \frac{21 e ^{\frac{1}{x}}}{x ^{2}}

= \frac{d}{d x} (- \frac{21 e ^{\frac{1}{x}}}{x ^{2}})

\frac{d}{d x} (- \frac{21 e ^{\frac{1}{x}}}{x ^{2}}) = - \frac{21 ( - e ^{\frac{1}{x}} - 2 e ^{\frac{1}{x}} x )}{x ^{4}}

= - \frac{21 ( - e ^{\frac{1}{x}} - 2 e ^{\frac{1}{x}} x )}{x ^{4}}

\int_{\frac{9}{2}}^{9} 81 - x^{2} d x

x \to \infty lim ((1 - \frac{2}{x})^{x + 3})

\int 2 x^{\frac{2}{3}} d x

t^{2} y^{^{'}} + t y = t^{5}

\int \frac{y + 4}{y} d y

What is (d^2)/(dx^2)(21e^{1/x}) ?
The answer to (d^2)/(dx^2)(21e^{1/x}) is -(21(-e^{1/x}-2e^{1/x}x))/(x^4)