Test:351 QNo:66

If the lines (x-3)/1=(y-1)/2=(z-2)/3 and (x-k)/1=(y-5)/2=(z-2)/1 intersect then k is

2 Answers

11
Mani Pal Singh ·

answer is not matching

Please provide the solution

1
Rohan Ghosh ·

ans k=5?
let x,y,z be the common point

we have x=3+λ
y=2λ+1
z=3λ+2

so we have

(3+λ-k)/1=(2λ+1-5)/2=(3λ+2-2)/1

we get 2λ-4=6λ thus λ=-1

so we get

2-k=-6/2

k=5

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