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Popular >

integral from-2 to 1 of 2x^2+1

Solution

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

Solution

9

Solution steps

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

\int_{- 2}^{1} 2 x^{2} d x = 6

\int_{- 2}^{1} 1 d x = 3

= 6 + 3

Simplify

= 9

Graph

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\int_{0}^{y} 3 x d x

Frequently Asked Questions (FAQ)

What is the integral from-2 to 1 of 2x^2+1 ?
The integral from-2 to 1 of 2x^2+1 is 9