" (i) "int(1+sin x)/(1+cos x)e^(x)dx

int(sin x)/(1-cos x)dx

int(sin x)/(1+cos x)dx

" (1) "int(2+sin x)/(1+cos x)e^(x/2)dx

int(1-sin x)/(cos+x)dx

(i) int (sin x)/(1+ cos x) dx. (ii) int (sin x)/(1+ cos x)^2 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 .

int(e^(x)-sin x)/(cos x+e^(x))dx

int ((1-sin x )/( 1- cos x )) e^(x) dx is equal to

int (sin x)/(1 + cos x) dx .

int (1 + sin x) / (cos x) dx