(m)cot^(-1)(a-1)=cot^(-1)x+cot^(-1)(a^(2)-x+1)

cot(tan^(-1)x+cot^(-1)x)

Find- cot^(-1)1+cot^(-1)2+cot^(-1)3

Solve for x: cot^(-1)(x-1)+cot^(-1)(x-2)+cot^(-1)(x-3)=0

2cot(cot^(-1)(3)+cot^(-1)(7)+cot^(-1)(13)+cot^(-1)(21)) has the value

cot^(-1)x+cot^(-1)(n^(2)-x+1)=cot^(-1)(n-1)

cot ^(-1)x+cot^(-1)(a^(2)-x+1)=cot ^(-1)(a-1)

int_(-2)^(3)[cot^(-1)((x-1)/(x+1))+cot^(-1)((x+1)/(x-1))]dx=

The solution set of the inequality (tan^(-1)x cot^(-1)x)^(2)+5-5(tan^(-1)x)^(2)cot^(-1)x+(cot^(-1)x)^(2)-5cot^(-1)x+6(tan^(-1)x)^(2)+1lt0 is (m,n) ,the value of cot^(-1)m-cot^(-1)n is equal to (1) -1 (3) Zero

Solve: "cot"^(-1) 1/(x-1) + "cot"^(-1) 1/x +"cot"^(-1) 1/(x+1) = "cot"^-1 1/(3x)