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The equation x-y=4 and x^2+4xy+y^2=0 rep...

The equation `x-y=4 and x^2+4xy+y^2=0` represent the sides of

A

equilateral

B

right angled

C

isosceles

D

None of these

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The correct Answer is:
A
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MARVEL PUBLICATION-PAIR OF STRAIGHT LINES-TEST YOUR GRASP
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  3. If m is the slope of one fo the two lines jointly given by the equatio...

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  4. If the two lines (3x-y)^(2)=k(x^(2)+y^(2)) are mutualy perpendiculart ...

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  5. If kx+3y=0 is one of the two lines 5x^(2)+3xy-y^(2)=0 then k^(2)-9k=

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  6. If one of the two lines 3x^(2)-kxy-y^(2)=0 bisects an angle between th...

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  7. If the two lines kx^(2)+5xy+9y^(2)=0 are equally inclined with the cor...

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  8. Combined equation of the two lines passing through the origin, forming...

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  9. If the lines 3x^(2)-kxy-3y^(2)=0 and x+2y=8 form and isosceles triangl...

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  10. Length of each leg of an isosceles right angled triangle, formed by th...

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  11. If the equation kxy+10x+6y+4=0 represents a pair of lines then : k=

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  12. If the angle between the lines ax^(2)+xy+by^(2)=0 is 45^(@), then

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  13. If the equation ax^(2)+ay^(2)+2gx+2fy+c=0 represents a pair of lines t...

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  14. If 3h^(2)=4ab, then the ratio of the slopes of the lines ax^(2)+2hxy+b...

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  15. Lines represented by the equation 5x^(2)-2xy+2y^(2)=0 are

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  16. If one of the lines kx^(2)+xy-y^(2)=0 bisects an angle between the co-...

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  17. Measure of angle between the lines sqrt(2)(x^(2)+y^(2))=4xy is

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  18. If the angle between the lines 3x^(2)-4y^(2)=0 is tan^(-1)k, then k=

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  19. Joint equation of two lines through the origin and parallel to the pai...

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  20. If the equation x^(2)+2hxy+2fy+c=0 represents a pair of lines, then

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