Question

If integral 1 to 5 f(x)dx =36/15 what is the value of integral from 5 to 1 f(x)dx?

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Answer 1

-36/15

Explanation:

If the indefinite integral of f(x)dx is F(x), then your integral from 1 to 5 is ...

F(5) -F(1) = 36/15

The integral in the reverse direction is ...

F(1) -F(5) = -(F(5) -F(1)) = -36/15