7/10 Hard Scale 79D

Calculus Level 2

1 4 x 2 d x = ? \large \int _{ 1 }^{ 4 }{ { x }^{ 2 }dx } = ?


The answer is 21.

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1 solution

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Aug 30, 2018

x 2 d x = x 3 3 + C \int { { x }^{ 2 }dx } =\frac{x^3}3+C

1 4 x 2 d x = 4 3 3 1 3 3 = 21 \int _{ 1 }^{ 4 }{ { x }^{ 2 }dx } =\frac{4^3}3-\frac{1^3}3=21

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