[a],[(iii)cot^(-1)((1-x)/(1+x))]

Differentiate w.r.t. x : (i)cot^(-1)((1)/(x))" "(ii)tan^(-1)((2x)/(1-x^(2)))" "(iii)cot^(-1)((1-x)/(1+x))

x cot^(-1)x

(1)/(1-cot x)

Express sin^(-1)x in terms of (i) cos^(-1)sqrt(1-x^(2)) (ii) "tan"^(-1)x/(sqrt(1-x^(2))) (iii) "cot"^(-1)(sqrt(1-x^(2)))/x

Express sin^(-1)x in terms of (i) cos^(-1)sqrt(1-x^(2)) (ii) "tan"^(-1)x/(sqrt(1-x^(2))) (iii) "cot"^(-1)(sqrt(1-x^(2)))/x

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

solve the following equations Cot^(-1)((1+x)/(1-x))=1/2Cot^(-1)(1/x),xgt0 and x!=1

Solve for x tan^(-1)(x-1)=cot^(-1)((4)/(x))

Solve cot^(-1) ((3x^(2) + 1)/(x)) = cot^(-1) ((1 - 3x^(2))/(x)) - tan^(-1) 6x