Question

How do you evaluate the definite integral `int 2x dx` from [0,1]?

Answer 1

`=1`

Explanation:

First let us find the indefinite integral `int2xdx`:
`" "`
`int2xdx = x^2+C`
`" "`
`int_0^1 2xdx=(1)^2-(0)^2=1-0=1`