What is the integral of (3^{1/x})/(x^2) ?

The integral of (3^{1/x})/(x^2) is -(3^{1/x})/(ln(3))+C

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integral of (3^{1/x})/(x^2)

\int \frac{3 ^{\frac{1}{x}}}{x ^{2}} d x

- \frac{3 ^{\frac{1}{x}}}{ln ( 3 )} + C

Solution steps

\int \frac{3 ^{\frac{1}{x}}}{x ^{2}} d x

Apply u-substitution

= \int - 3^{u} d u

Take the constant out:

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

= - \int 3^{u} d u

\int a^{x} d x = \frac{a ^{x}}{ln a}

= - \frac{3 ^{u}}{ln ( 3 )}

Substitute back

u = \frac{1}{x}

= - \frac{3 ^{\frac{1}{x}}}{ln ( 3 )}

Add a constant to the solution

= - \frac{3 ^{\frac{1}{x}}}{ln ( 3 )} + C

What is the integral of (3^{1/x})/(x^2) ?
The integral of (3^{1/x})/(x^2) is -(3^{1/x})/(ln(3))+C