Hey guys would love any help on this problem!
Integral of 4x^2 / (25-x^2)^1/2
dx = 5costheta
doing some plugging in and cancelling I get...
sin^2theta = 1-2costheta / 2
So now I have...
50theta - 100sintheta .... Now I'm stuck, I know I have to eventually use a triangle but I'm not sure to make the 50theta go away.
Would appreciate any help !