lower boundary = 0
upper boundary = 4
x / (sqrt 1 + 2x)
I've let u = 1 + 2x
du = xdx
new boundaries = 1 to 9
u^-1/2 du. If I integrate it, it will 2u^1/2
2(9)^1/2 - 2(1)^1/2 = 4
This is what I keep getting but apparently it's wrong.....I'm not understanding how else to do this problem . The answer should be 10/3