Question

7. If a, b, c are all non-zero and a + b + c = 0, prove that
$\frac{{a}^{2} }{bc} + \frac{ {b}^{2} }{ca} + \frac{ {c}^{2} }{ab} = 3$
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Answer 1

your equations is wrong because the square of the a+b+c = 0

Answer 2

Answer:

i hope this answer is right