Prove that:(i) a+b+ca-1b-1+b-1c-1+c-1a-1=abc(ii) a-1+b-1-1=aba+b

1.	Prove that:(i) a+b+ca-1b-1+b-1c-1+c-1a-1=abc(ii) a-1+b-1-1=aba+b
Answer» Prove that: (i) $\frac{a + b + c}{a^{- 1} b^{- 1} + b^{- 1} c^{- 1} + c^{- 1} a^{- 1}} = a b c$ (ii) ${(a^{- 1} + b^{- 1})}^{- 1} = \frac{a b}{a + b}$

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