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Popular Calculus >

integral of 4-|x|

Solution

\int 4 - ∣ x ∣ d x

Solution

4 x - \frac{x ∣ x ∣}{2} + C

Solution steps

\int 4 - ∣ 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

= \int 4 d x - \int ∣ x ∣ d x

\int 4 d x = 4 x

\int ∣ x ∣ d x = \frac{x ∣ x ∣}{2}

= 4 x - \frac{x ∣ x ∣}{2}

Add a constant to the solution

= 4 x - \frac{x ∣ x ∣}{2} + C

Graph

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Frequently Asked Questions (FAQ)

What is the integral of 4-|x| ?
The integral of 4-|x| is 4x-(x|x|)/2+C