1.

If (x /xa+yb+zc) = (y /ya+zb+xc) = (z / za+xb+yc) and x + y + z ≠o, then each ratio is :

A. 1/a - b - c
B. 1/ a+ b - c
C. 1 / a - b + c
D. 1 / a+ b+ c
Answer» E.


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