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Consider the lines given by : L1 : x+3y-...

Consider the lines given by : `L_1 : x+3y-5=0, L_2 : 3x-ky-1=0, L_3 : 5x+2y-12=0` If `a` be the value of `k` for which lines `L_1, L_2, L_3` do not form a triangle and `c` be the value of `k` for which one of `L_1, L_2, L_3` is parallel to at least one of the other lines, then `abc=`

A

5

B

`5//6`

C

`-6//5`

D

`-9`

Text Solution

Verified by Experts

The correct Answer is:
B
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