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Popular Calculus >

integral from 1 to 2 of 4-x^2

Solution

\int_{1}^{2} 4 - x^{2} d x

Solution

\frac{5}{3}

+1

Decimal

1.66666 \dots

Solution steps

\int_{1}^{2} 4 - x^{2} 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_{1}^{2} 4 d x - \int_{1}^{2} x^{2} d x

\int_{1}^{2} 4 d x = 4

\int_{1}^{2} x^{2} d x = \frac{7}{3}

= 4 - \frac{7}{3}

Simplify

4 - \frac{7}{3} : \frac{5}{3}

= \frac{5}{3}

Graph

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Frequently Asked Questions (FAQ)

What is the integral from 1 to 2 of 4-x^2 ?
The integral from 1 to 2 of 4-x^2 is 5/3