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The distance between the lines given by ...

The distance between the lines given by `(x-2y)^(2)+k(x-2y)=0` is 3, then k=

A

`pm6sqrt(5)`

B

`pm3sqrt(5)`

C

`pm2sqrt(5)`

D

`pm9sqrt(5)`

Text Solution

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The correct Answer is:
B
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