Question

integral of 5 to 0 (dx/(sqrt(1+3x))=
a)4
b)(8/3)
c)2
d)(16/9)
e)1

Answer 1

let u = 1+3x

Integral u^-1/2 * du/3
= 1/3 * 2 * u^1/2 = 2/3 * sqrt(3x+1)

Evaluate at 5 and 0 and pick your answer.

Did you get (c)?