Practicing Success
If $\frac{x}{(b+c)(b+c-2a)}=\frac{y}{(c-a) (c + a - 2b)}=\frac{z}{(a - b)(a + b - 2c)}$ then value of $x+y+z$ is: |
$a+b+c$ $a^2+b^2+c^2$ 0 1 |
0 |
Let, $\frac{x}{(b+c)(b+c-2a)}=\frac{y}{(c-a) (c + a - 2b)}=\frac{z}{(a - b)(a + b - 2c)}$ = k Re arranging, so x+y+z= k[ b*b+ bc-2ab-bc-c*c+2ac+c*c+ac-2bc-ac-a.a+2ab+ a*a +a*b-2ac-ab-b*b+2bc] x+y+z = k * 0 The correct answer is Option (3) → 0 |