Question

The position vectors of the points A.B, C are
respectively i+ xj+3k, 3i+ 4j+7K and
yi-2j - 5k. If A,B, and C are collinear, then
x i+ yj
​

Answer 1

Step-by-step explanation:

(1,x,3)=λ(3,4,7)+μ(y,−2,−5)

1=3λ+μy

x=4λ+(−2μ)

3=7λ−5μ

2−x=(−3−y)μ

So only x=2, y=−3