|Q|" Find "int x sqrt(x^(4)+1)dx

Evaluate: int x sqrt(x^(4)+1)dx

Evaluate: (i) int(1)/(x sqrt(x^(4)-1))dx (ii) int sqrt(e^(x)-1)dx

Evaluate: int(1)/(x sqrt(x^(4)-1))dx

Evaluate int_(1)^(4) x sqrt(x^(2)-1) dx

Evaluate: (i) int4\ x^3\ sqrt(5-x^2)\ dx (ii) int1/(sqrt(x)+x)\ dx

Evaluate the following : (i) int sqrt(4 - x^2) dx " " (ii) int sqrt(25 x^2 - 9)dx " " (iii) int sqrt(x^2 + x + 1) dx .