Question

What is the definite integral of `x` from 0 to 3?

Answer 1

`int_0^3 x dx`

`=[x^2/2]_0^3`

`=[(3)^2/2-(0)^2/2]`

`=[(3)^2/2-(0)^2/2]`

`=[9/2-0/2]`

`=[9/2]`

`=4.5`