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Popular Calculus >

integral from 1 to 3 of (x-2)^2

Solution

\int_{1}^{3} (x - 2)^{2} d x

Solution

\frac{2}{3}

+1

Decimal

0.66666 \dots

Solution steps

\int_{1}^{3} (x - 2)^{2} d x

Expand

(x - 2)^{2} : x^{2} - 4 x + 4

= \int_{1}^{3} x^{2} - 4 x + 4 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}^{3} x^{2} d x - \int_{1}^{3} 4 x d x + \int_{1}^{3} 4 d x

\int_{1}^{3} x^{2} d x = \frac{26}{3}

\int_{1}^{3} 4 x d x = 16

\int_{1}^{3} 4 d x = 8

= \frac{26}{3} - 16 + 8

Simplify

\frac{26}{3} - 16 + 8 : \frac{2}{3}

= \frac{2}{3}

Graph

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integral from 1 to 2 of (cos(x^2))/x

Frequently Asked Questions (FAQ)

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