Question

if a,b,c are three real numbers not all equal and the vector x = ai + bj + ck , y= bi + cj +ak, z = ci +aj+ bk ,are coplaner then x.y +y.z +z.x is
a) positive
b) negative
c) non positive
d) non negative

Answer 1

Answer:

I don't know so so sorry sorry

Answer 2

Answer:

I think non positive is the answer...

please mark as brainliest answer.