Question

please help in this question

Answer 1

Q : If a + b + c = 0 , then prove that
$\frac{ {(b + c)}^{2} }{3bc} + \frac{ {(a + c)}^{2} }{3ac} + \frac{ {(a + b)}^{2} }{3ab} = 1$
For Calculation see pic