What is the integral of ((e^{-x})^2)/y ?

The integral of ((e^{-x})^2)/y is -(e^{-2x})/(2y)+C

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integral of ((e^{-x})^2)/y

integral

\frac{( e ^{- x} ) ^{2}}{y}

- \frac{e ^{- 2 x}}{2 y} + C

Solution steps

\int \frac{( e ^{- x} ) ^{2}}{y} d x

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= \frac{1}{y} \cdot \int (e^{- x})^{2} d x

Apply u-substitution

: \int - u d u

= \frac{1}{y} \cdot \int - u d u

Take the constant out:

\int a \cdot f (x) d x = a \cdot \int f (x) d x

= \frac{1}{y} (- \int u d u)

Apply the Power Rule

: \frac{u ^{2}}{2}

= \frac{1}{y} (- \frac{u ^{2}}{2})

Substitute back

u = e^{- x}

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

Simplify

\frac{1}{y} (- \frac{( e ^{- x} ) ^{2}}{2}) : - \frac{e ^{- 2 x}}{2 y}

= - \frac{e ^{- 2 x}}{2 y}

Add a constant to the solution

= - \frac{e ^{- 2 x}}{2 y} + C

(x^{2} - 5 x) e^{x}

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

\frac{1}{cos ^{2} ( y )}

\frac{x ^{2}}{x}

3 - 5 x^{2}

What is the integral of ((e^{-x})^2)/y ?
The integral of ((e^{-x})^2)/y is -(e^{-2x})/(2y)+C