en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular Calculus >

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

Popular Examples

integral from 0 to 2pi of cos(t)sin^2(t)

integral from 0 to 2 of 15sqrt(4x+1)

integral from 5 to x of 1/(1+t^4)

integral from-1 to 1 of x^2y^2z^2

integral from 0 to 6 of (36-x^2)

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