Question

# If represents a pair of lines then λ=

- 1
- 2
- 3
- 4

Hint:

- The second degree Homogenous equation is said to be a pair of straight lines if the determinant becomes 0.

## The correct answer is: 2

### Given That:

If represents a pair of lines then λ=

>>> The second degree non homogenous equation is said to be a pair of straight lines if and only if:

=0

>>> Therefore, the equation is:

= 0

= 2.

>>> Therefore, the value of is 2.

Therefore, the value of is 2.

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