If `x+y+z=xyz`, then `tan^(-1)x+tan^(-1)y+tan^(-1)z=`

If xy +yz+zx=1 then tan^(-1)x+tan^(-1)y+tan^(-1)z =

If x=2. y=3 , then tan^(-1)x+tan^(-1)y=

If tan^(-1)x-tan^(-1)y=tan^(-1)A, then A=

If x, y, z in R are such that they satisfy x + y + z = 1 and tan^(-1)x+tan^(-1)y+tan^(-1)z=(pi)/(4) , then the value of |x^(3)+y^(3)+z^(3)-3| is

If x,y,z are in AP and tan^(-1)x,tan^(-1)y,tan^(-1)z are also in AP, then