What is the integral from 1 to 7 of 3 ?

The integral from 1 to 7 of 3 is 18

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integral from 1 to 7 of 3

\int_{1}^{7} 3 d x

18

Solution steps

\int_{1}^{7} 3 d x

Integral of a constant:

\int a d x = a x

= [3 x]_{1}^{7}

Compute the boundaries:

18

= 18

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