What is the integral of (x+1)/(2x) ?

The integral of (x+1)/(2x) is 1/2 (x+ln|x|)+C

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

integral of (x+1)/(2x)

\int \frac{x + 1}{2 x} d x

\frac{1}{2} (x + ln ∣ x ∣) + C

Solution steps

\int \frac{x + 1}{2 x} d x

Take the constant out:

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

= \frac{1}{2} \cdot \int \frac{x + 1}{x} d x

Expand

\frac{x + 1}{x} : 1 + \frac{1}{x}

= \frac{1}{2} \cdot \int 1 + \frac{1}{x} d x

Apply the Sum Rule:

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

= \frac{1}{2} (\int 1 d x + \int \frac{1}{x} d x)

\int 1 d x = x

\int \frac{1}{x} d x = ln ∣ x ∣

= \frac{1}{2} (x + ln ∣ x ∣)

Add a constant to the solution

= \frac{1}{2} (x + ln ∣ x ∣) + C

What is the integral of (x+1)/(2x) ?
The integral of (x+1)/(2x) is 1/2 (x+ln|x|)+C