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

int(x cot^(2)x)dx

2. int ( 1-cot^2x)dx

int(1+cot^(2)x)/(1+cot x)backslash dx

int(1+cot^(2)x)/(1+cot x)backslash dx

int cot^(2) x dx = ?

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

If (cot x+(cot^(2)x)/(2)+(cot^(3)x)/(3)+...+(cot^(99)x)/(99))+ int(1+cot x)(1+cot^(99)x)dx =-lambda[int cot^(2)xdx+int cot^(3)xdx+int cot^(4)xdx+...+int cot^(98)xdx] , then value of lambda is equal to

Evaluate : (i) int(sinx)/((1-4cos^(2)x))dx (ii) int("cosec"^(2)x)/((1-cot^(2)x))dx

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

int ("cosec"^(2)x)/((1-cot^(2)x))dx=?