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If the equation a^(2)x^(2)+bxy^(2)=a(b+c...

If the equation `a^(2)x^(2)+bxy^(2)=a(b+c)xy` represents a pair of coincident lines, then

A

`b=a`

B

`b=c`

C

`c=a`

D

`a+b=0`

Text Solution

Verified by Experts

The correct Answer is:
B
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NIKITA PUBLICATION-PAIR OF STRAIGHT LINES-MULTIPLE CHOICE QUESTIONS
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  8. If the lines represented by sin^(2)alpha(x^(2)+y^(2))=((cosalpha)x-(si...

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  11. The product of the slopes of the line given by x^(2)-xy-6y^(2)=0 is

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  12. If the sum of the slopes of the lines given by 3x^(2)+kxy-y^(2)=0 is z...

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  13. If the lines represented by 6x^(2)+41xy-7y^(2)=0 makes angle alpha and...

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  15. If the lines represented by x^(2)-4xy+y^(2)=0 makes angle alpha and be...

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  16. If the sum of the square of slopes of the lines represented by kx^(2)-...

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  17. If the slope of one of the lines given by kx^(2)+(3k+1)xy+3y^(2)=0 is ...

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  19. If the sum of the slopes of the lines given by 2x^(2)+kxy-3y^(2)=0 is ...

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