Question

a+b+c/(a^-1 b^-1 + b^-1 c^-1 + c^-1 a^-1 ) = abc

Answer 1

Step-by-step explanation:

a+b+c/(ab^-1+bc^-1+ca^-1)

denominator= (1/ab ) + (1/bc) + (1/ca)

(c+a+b)/abc

a+b+c/c+a+b/abc

abc=RHS