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The values of k for which lines kx + 2y ...

The values of k for which lines `kx + 2y + 2 = 0, 2x + ky + 3 = 0, 3x + 3y + k = 0` are concurrent are

A

`{2,3,5}`

B

`{2,3,-5}`

C

`{3,-5}`

D

`{-5}`

Text Solution

Verified by Experts

The correct Answer is:
C
Three non-parallel lines are concurrent if `Delta = 0`
`|{:(k,2,2),(2,k,3),(3,3,k):}| =0 rArr k=2,3,-5`
But for `k = 2`, lines are parallel.
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