Question

using section formula prove that the points (-2 3 5) (1 2 3) and (7 0 1) are collinear
guys I need answer fast​

Answer 1

Answer:

Step-by-step explanation:

Co-ordinates of B=(7λ−2λ+1,3λ+1,−λ+5λ+1)

Now, 7λ−2λ+1=1,3λ+1=2,−λ+5λ+1=3

⇒λ=12 which can be obtained from each equation

Therefore, B divides AC in the ratio 1 : 2.

⇒A,B and C are collinear.