" 23."^(4)(1)/(sqrt(x+1)+sqrt(x))

(1)/(sqrt(x+3)-sqrt(x-4))

int ((log(1+6sqrt(x)))/(3sqrt(x)+sqrt(x))+(1)/(3sqrt(x)+4sqrt(x)))dx

Solve : (sqrt(4x+1)+sqrt(x+3))/(sqrt(4x+1)-sqrt(x+3))=(4)/(1)

Solve the following equation: (sqrt(4x+1)+sqrt(x+3))/(sqrt(4x+1)-sqrt(x+3))=4/1

Prove that: tan^(-1)[(sqrt(1+x)-sqrt(1-x))/(sqrt(1+x+sqrt(1-x)))]=(pi)/(4)-(1)/(2)cos^(-1)x,quad -(1)/(sqrt(2))<=x<=1

int (dx)/(sqrt(1+sqrt(x)))=(4)/(3)(sqrt(x)-2)sqrt(1+sqrt(x))+c

Prove that : tan^(-1)((sqrt(1+x)-sqrt(1-x))/(sqrt(1+x)+sqrt(1-x)))=pi/4-1/2cos^(-1)x,-1/sqrt2lexle1