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