Question

prove this plzzzzzzz

Answer 1

hope this helps you...

Answer 2

LHS
(x+y+z)*1/(1/xy+1/yz+1/zx)
(x+y+z)*1/( xy z^2+x^2 yz + x y^2 z)/(x^2 y^2 z^2)
(x+y+z)*1/(xyz(z+x+y)/xyz)
(x+y+z)*1/(x+y+z/xyz)
x+y+z*xyz/(x+y+z)
xyz

RHS= xyz
LHS=RHS