If a, b, c are non-coplanar vectors, then ((a.(b x c))/((c x a)b))+((b.(a x c))/(c.(a x b))) is A. 0 B. 2 C. 1 D. none of these

Question

If a, b, c are non-coplanar vectors, then \(\cfrac{\vec a.(\vec b\times\vec c)}{(\vec c\times\vec a).\vec b}\) + \(\cfrac{\vec b.(\vec a\times\vec c)}{\vec c.(\vec a\times\vec b)}\) is

A. 0

B. 2

C. 1

D. none of these

Answer 1

Correct option is A. 0

= 0