" 12."int(x)/(a+x)dx

int x^5/(1+x^12)dx

Evaluate the following integrals: (i) int 2x sqrt(1 + x^2)dx " " (ii) int e^(-x^2) x dx " " (iii) int (sin x)/(1 + cos x) dx (iv) int 1/(1 + x^2)dx " " (v) int x (a - x)^8 dx .

inte^(5x+12)dx

Evaluate: int(x^2)/(x^4-x^2-12)\ dx

Evaluate: int(x^2)/(x^4-x^2-12)\ dx

Evaluate int (x+1)/(x^(2)+3x+12) dx .

int(1)/(12-13sin x)dx