Question

How do you find the definite integral of `int 15-5x` from `[1,3]`?

Answer 1

`10`

Explanation:

`int_1^3 (15-5x)dx=[15x-5x^2/2]_1^3`

`=(45-45/2)-(15-5/2)`

`=10`.

(In practical terms, this will represent the area under the curve of the function `f(x)=15-5x` between the values from x=1 to x=3).