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Popular >

integral of (3-x)

Solution

\int (3 - x) d x

Solution

3 x - \frac{x ^{2}}{2} + C

Solution steps

\int 3 - 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 3 d x - \int x d x

\int 3 d x = 3 x

\int x d x = \frac{x ^{2}}{2}

= 3 x - \frac{x ^{2}}{2}

Add a constant to the solution

= 3 x - \frac{x ^{2}}{2} + C

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Frequently Asked Questions (FAQ)

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