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The acute angle between the lines given ...

The acute angle between the lines given by `x^(2)+2(cottheta)xy+y^(2)=0` is

A

`0^(@)`

B

`60^(@)`

C

`90^(@)`

D

`tan^(-1)(cosecalphasqrt(cos2alpha))`

Text Solution

Verified by Experts

The correct Answer is:
D
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NIKITA PUBLICATION-PAIR OF STRAIGHT LINES-MULTIPLE CHOICE QUESTIONS
  1. The acute angle between the lines given by (sin^(2)theta-1)x^(2)-(cos^...

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  2. The acute angle between the lines given by x^(2)+2(cosectheta)xy+y^(2)...

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  3. The acute angle between the lines given by x^(2)+2(cottheta)xy+y^(2)=0...

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  4. The angle between the pair of lines represented by (sin^(2)alpha)(x^(2...

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  5. If the angle theta is acute, then the angle between the pair of lines ...

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  6. If the angle between the lines given by (tan^(2)A)x^(2)-kxy-y^(2)=0 is...

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  7. If theta is the acute angle between the lines represented by kx^(2)-4x...

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  8. If the angle between the lines given by 6x^(2)+xy+ky^(2)=0 is 45^(@), ...

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

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  10. If theta1 and theta2 are the acute angle between the lines given by 3x...

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  11. If the angle between the lines given by ax^(2)+2hxy+by^(2)=0 is equal ...

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  12. If the acute angle between the lines ax^(2)+2hxy+by^(2)=0 is congruent...

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  13. If x^2+2h x y+y^2=0 represents the equation of the straight lines thro...

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  14. The joint equation of pair of lines passing through the origin and mak...

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

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  16. The joint equation of pair of lines passing through the origin and mak...

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

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

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

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  20. Joint equation of two lines, through the origin, each making an angle ...

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