`If x=cisalpha ,b=cis beta,c=cisgamma` and`x+y+z=0 ` then find the value of `1/x+1/y+1/z`

Ifx=cis alpha,b=cis beta,c=cis gamma and x+y+z=0 then find the value of (1)/(x)+(1)/(y)+(1)/(z)

If A,B,C are angles of a triangle such that x = cis A , y = cis B , z = cis C , then find the value of xyz .

If A, B, C are angles of a triangle such that x = cis A , y = cis B , z = cis C , then find the value of xyz.

If a=cisalpha,b=cisbeta,c=cisgamma , and a/b+b/c+c/a-1=0 then cos(alpha-beta)+cos(beta-gamma) + cos(gamma-alpha) =

If x + y + z = xyz and x, y, z gt 0 , then find the value of tan^(-1) x + tan^(-1) y + tan^(-1) z

If x + y + z = xyz and x, y, z gt 0 , then find the value of tan^(-1) x + tan^(-1) y + tan^(-1) z

If x + y + z = xyz and x, y, z gt 0 , then find the value of tan^(-1) x + tan^(-1) y + tan^(-1) z

If x + y + z = xyz and x, y, z gt 0 , then find the value of tan^(-1) x + tan^(-1) y + tan^(-1) z