if-x-y-3a-b-y-z-3b-c-z-x-3c-a-then-prove-that-x-y-z-a-b-c-ax-by-cz-a-2-b-2-c-2-

Question Number 136640 by jahar last updated on 24/Mar/21

i f \frac{x + y}{3 a - b} = \frac{y + z}{3 b - c} = \frac{z + x}{3 c - a} t h e n

p r o v e t h a t, \frac{x + y + z}{a + b + c} = \frac{a x + b y + c z}{a^{2} + b^{2} + c^{2}}