`int_(1/n)^((an-1)/n) sqrt(x)/(sqrt(a-x)+sqrt(x))dx=` (A) `a/2` (B) `(na+2)/(2n)` (C) `(na-2)/(2n)` (D) none of these

The value of int_(1//n)^((an-1)//n) (sqrt(x))/(sqrt(a-x+sqrtx))dx , is

int_(1)^(5)(sqrt(x+2sqrt(x-1))+sqrt(x-2sqrt(x-1)))dx =

int((a+sqrt(x))^(n))/(sqrt(x))dx,n!=-1

int(x^(n-1))/(sqrt(1+4x^(n)))dx

int((a+b sin^(-1)x)^(n))/(sqrt((1-x^(2))))dx

int((a+bsin^(-1)x)^(n))/(sqrt(1-x^(2)))dx

"int((a+sqrt(x))^(n))/(sqrt(x))dx,n!=-1

int(1)/(sqrt(8+3x-n^(2)))dx

Sum of 1/(sqrt(2)+sqrt(5))+1/(sqrt(5)+sqrt(8))+1/(sqrt(8)+sqrt(11))+1/(sqrt(11)+sqrt(14))+..to n terms= (A) n/(sqrt(3n+2)-sqrt(2)) (B) 1/3 (sqrt(2)-sqrt(3n+2) (C) n/(sqrt(3n+2)+sqrt(2)) (D) none of these

If int_(0)^(b)(1)/(sqrt(1+x)-sqrt(x))dx=(2)/(3)(2sqrt(2)) , then b =