Question

prove that ....please.......​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

Consider the LHS,

$\frac{a + b + c}{ \frac{1}{ab} + \frac{1}{bc} + \frac{1}{ca} }$

$= \frac{a + b + c}{( \frac{a + b + c}{abc} )}$

$=( a + b + c) \times \frac{abc}{(a + b + c)}$

$= abc$

= RHS,

Hence proved......