What is the integral of (x+5)/(x^2+16) ?

The integral of (x+5)/(x^2+16) is 1/2 ln|x^2+16|+5/4 arctan(x/4)+C

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integral of (x+5)/(x^2+16)

\int \frac{x + 5}{x ^{2} + 16} d x

\frac{1}{2} ln x^{2} + 16 + \frac{5}{4} arctan (\frac{x}{4}) + C

Solution steps

\int \frac{x + 5}{x ^{2} + 16} d x

Expand

\frac{x + 5}{x ^{2} + 16} : \frac{x}{x ^{2} + 16} + \frac{5}{x ^{2} + 16}

Apply the Sum Rule:

\int f (x) \pm g (x) d x = \int f (x) d x \pm \int g (x) d x

= \int \frac{x}{x ^{2} + 16} d x + \int \frac{5}{x ^{2} + 16} d x

\int \frac{x}{x ^{2} + 16} d x = \frac{1}{2} ln x^{2} + 16

\int \frac{5}{x ^{2} + 16} d x = \frac{5}{4} arctan (\frac{x}{4})

= \frac{1}{2} ln x^{2} + 16 + \frac{5}{4} arctan (\frac{x}{4})

Add a constant to the solution

= \frac{1}{2} ln x^{2} + 16 + \frac{5}{4} arctan (\frac{x}{4}) + C

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

(- 1, 1), (- 2, - 1)

y = x + 5

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

\int \frac{x ^{8}}{( 2 - x ^{9} ) ^{2}} d x

What is the integral of (x+5)/(x^2+16) ?
The integral of (x+5)/(x^2+16) is 1/2 ln|x^2+16|+5/4 arctan(x/4)+C