Show that the points having position vectors a bar, b bar and 3a bar- 2b bar are collinear, where a bar , b bar and c bar are any vectors.

Arun
25758 Points
4 years ago
Dear Aayushi

Let the points P, Q and R
then for collinearity
PQ = $\lambda$ PR
Now check
b – a = $\lambda$ (3a – 2b – a)
b – a =  – 2(b – a)
Hence these are collinear vectors