Solve for `x` : `cot^(-1)x+ sin^(-1)( 1/sqrt(5)) = pi/4`

Solve for x : cot^(-1)x+tan^(-1)3=(pi)/2

Solution of equation cot^(-1) x + sin^(-1) . 1/sqrt5 = pi/4 is

4(cot^(-1)3+csc^(-1)sqrt(5))=pi

Solve: sin^(-1)6x + sin^(-1)6 sqrt3x =-pi/2 .

Solve: sin^(-1)x + sin^(-1)2x = pi/3 .

Prove that : (i) tan^(-1) x + cot^(-1)( x+1) = tan^(-1) (x^(2)+x+1) (ii) cot^(-1) 3 + "cosec"^(-1) sqrt(5) = pi/4

Solve sin^(-1)x + sin^(-1) 2x = (pi)/(3)

Solve : cot^(-1)2x+cot^(-1)3x=(pi)/(4)