`int(1+tan^2x)/(1+cot^2x)dx`

int(1+tan^2x)/(1-tan^2x)dx=

int(1+tan^(2)x)/(1+cot^(2)x)dx-

Integrate the following functions (i) int((1+x)^(4))/(x)dx (ii) int(e^(200x)+e^(202x))/(e^(x)+e^(-x))dx (iii) int(1+tan^(2)x)/(1+cot^(2)x)dx

int (1-tan^2x)/(1+tan^2x) dx

int (1-tan^2x)/(1+tan^2x) dx

Evaluate : int(I+tan^2)/(I+cot^2x)dx

int (tan^2x+cot^2x)dx

Evaluate the following integrals : int (1+tan^(2)x)/(1+cot^(2) x ) dx

Evaluate: int(tan^2x+cot^2x)dx

int(tan^(2)x-cot^(2)x)dx=