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If x^(2)-k x y-y^(2)+2 y+2=0 represents ...

If `x^(2)-k x y-y^(2)+2 y+2=0` represents a pair of lines than the value of `k` is

A

2

B

`(1)/(sqrt(2))`

C

`2 sqrt(2)`

D

` sqrt(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
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HIMALAYA PUBLICATION-Pair Of Lines-QUESTION BANK
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