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If the angle between the lines given by ...

If the angle between the lines given by `x^(2)-2kxy+y^(2)=0` is `60^(@)`, then k=

A

`pmsqrt(3)`

B

`pmsqrt(2)`

C

`pm2`

D

`pm1`

Text Solution

Verified by Experts

The correct Answer is:
C
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NIKITA PUBLICATION-PAIR OF STRAIGHT LINES-MULTIPLE CHOICE QUESTIONS
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  2. If the angle between the lines given by 6x^(2)+xy+ky^(2)=0 is 45^(@), ...

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  3. If the angle between the lines given by x^(2)-2kxy+y^(2)=0 is 60^(@), ...

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  9. The equation of the pair of straight lines, each of which makes an ang...

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  12. Find the joint equaiton of the pair of the lines through the origin ea...

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  13. Joint equation of two lines through the origin each making angle of 60...

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  15. Find the joint equation of the pair of lines through the origin and ma...

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  17. The joint equation of pair of lines through the origin and making an e...

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  18. The joint equation of pair of lines through the origin and making an e...

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  19. If the slope of one of the lines given by ax^(2)+2hxy+by^(2)=0 is 5 ti...

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  20. The line x + y = sqrt6, forms an equilateral triangle with the lines x...

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