#### AnnaGautrey

##### New member

- Joined
- Apr 6, 2019

- Messages
- 3

I know I am supposed to use the inverse chain rule to solve this.

I have subbed in sqrt(x)-1 into the x already inside the integral, then subbed the x into that new function to get

integral ( 1/4 * d/dx( sqrt(sec(x) -1))

then solved for the derivative to get

integral ( 1/4 * ( 1/2*(sec(x)-1)^-(1/2) * sec(x)tan(x) ) )

so then used the inverse chain rule to get

1/4 * (sec(x)-1)^(1/2) + c

would this be correct?