__maths__>__Integral Calculus__>__Various Forms and Results of Integrals__### Integration by Combination of Methods

In this page, integration with combination of methods learned is introduced.

*click on the content to continue..*

how to integrate `int sqrt(sin^2x - 49) cosx dx` ?

- substitute `sinx=y` and again substitute `y=7sec theta`
- substitute `sinx=y` and again substitute `y=7sec theta`
- this cannot be solved.

The answer is "substitute `sinx=y` and again substitute `y=7sec theta`".

Congrats, completed the entire lesson.*This is a placeholder to solve exercise problems.*

*slide-show version coming soon*