Questions
a
-2
b
2
c
10
d
1
detailed solution
Correct option is A
The direction ratios of the line joining the first two points and the direction ratios of the line joining the last two points are as below3,k-4,-9 and -2,2-k,6If the above lines are coincident, then the above ratios are in proportion -32=k-42-k=-32 2k-8=-6+3k k=-2Talk to our academic expert!
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