Question

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Answer 1

Here is the answer ! Hope it helps
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Answer 2

Answer:

Step-by-step explanation:

a²/bc + b²/ca + c²/ab

on taking L.C.M. , a³/abc + b³/abc + c³/abc = a³ + b³ + c³/ 3abc

If a + b + c = 0,  a³ + b³ + c³ =3abc

So, a²/bc + b²/ca + c²/ab = 3abc/abc = 3