`int cot^(2)(3-x)dx`

int(x cot^(2)x)dx

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

int cot^(2) x dx = ?

int cot(3x)sin(2x)dx

int cot^(2)((x)/(2))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

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

Evaluate int cot^(-1)(x^(2)+x+1)dx

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

If f(x)=(1)/(3)cot^(3)x-cot x+int(cot^(4)x)dx and f((pi)/(2))=(pi)/(2) then f(x)=