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The value k such that 3x^2+11xy+10y^2+7x...

The value k such that `3x^2+11xy+10y^2+7x+13+k=0` represents a pair of straight lines is

A

1

B

2

C

3

D

4

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • The value of lambda " such that " lambdax^2-10xy+12y^2+5x-16y-3=0 represents a pair of straight lines, is

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    A
    `(1)/(sqrt50)`
    B
    `(1)/(7)`
    C
    `(1)/(5)`
    D
    `(1)/(sqrt(10))`
  • The value of lambda such that lambda x^(2) - 10 xy + 12 y^(2) + 5x - 16 y -3 = 0 represents a pair of straight lines , is

    A
    1
    B
    `-1`
    C
    2
    D
    `-2`
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