Integration of 1 by 1
- integration of 1 by 1 plus sinx
- integration of 1 by 1 + t square
- integration of 1 by 1 plus cotx
- integration of 1 by 1 plus x square
- integration of 1 by 1 + x
- integration of 1 by 1 + cot x
- integration of 1 by 1 + cos x
- integration of 1 by 1 + sin x
- integration of 1 by 1 + tan x
- integration of 1 by 1 + x square
