Question

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

Answer 1

`ln2 ~= 0.69315`

Explanation:

`int_1^2 1/x dx = lnx]""_1^2` Standard integral

`= ln2-ln1 = ln2 -0`

`=ln2 ~= 0.69315`