What is the integral of ((1+cos(x)))/(x+sin(x)) ?

The integral of ((1+cos(x)))/(x+sin(x)) is ln|x+sin(x)|+C

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integral of ((1+cos(x)))/(x+sin(x))

\int \frac{( 1 + cos ( x ) )}{x + sin ( x )} d x

ln ∣ x + sin (x) ∣ + C

Solution steps

\int \frac{1 + cos ( x )}{x + sin ( x )} d x

Apply u-substitution

= \int \frac{1}{u} d u

Use the common integral:

\int \frac{1}{u} d u = ln (∣ u ∣)

= ln ∣ u ∣

Substitute back

u = x + sin (x)

= ln ∣ x + sin (x) ∣

Add a constant to the solution

= ln ∣ x + sin (x) ∣ + C

What is the integral of ((1+cos(x)))/(x+sin(x)) ?
The integral of ((1+cos(x)))/(x+sin(x)) is ln|x+sin(x)|+C