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The lines (x-2)/1=(y-3)/1=(z-4)/-k and ...

The lines `(x-2)/1=(y-3)/1=(z-4)/-k` and `(x-1)/k=(y-4)/2=(z-5)/1` are coplaner if

A

`lamda=-1`

B

`lamda=2`

C

`lamda=-3`

D

`lamda=0`

Text Solution

Verified by Experts

The correct Answer is:
a,d
The given lines intersect if
`" "|{:(2-1,,3-4,,4-5),(1,,1,,lamda),(lamda,,2,,1):}|=0 rArr lamda=0, -1`.
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