Question

$if \: \frac{a}{b + c} + \frac{b}{c + a} + \frac{c}{a + b} = 1 \: so \: probe \: that \: \frac{ {a}^{2} }{b + c} + \frac{ {b}^{2} }{c + a} + \frac{ {c}^{2} }{a + b} = 0$
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Answer 1

Answer:

try this problem later