What is the definite integral of $x^2$ from 0 to 4?

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Answer 1 · 2014-09-25T04:29:04

In this problem we have to calculate the area under the parabola from $[0,4]$ .

$int_0^4x^2dx$

$=[x^3/3]_0^4$

$=[(4)^3/3-(0)^3/3]$

$=[64/3-0/3]$

$=[64/3]$

$=21.3333$ sq units

What is the definite integral of x^2x^2 from 0 to 4?