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If ax^2-y^2+4x-y=0 represents a pair of ...

If `ax^2-y^2+4x-y=0` represents a pair of lines , then a is equal to

A

`-16`

B

16

C

4

D

`-4`

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IPUCET PREVIOUS YEAR PAPERS-GGSIPU MATHEMATICS 2006-MCQ
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  2. int (0)^(pi//2) (cos x - sin x)/(1+cos x sin x)dx is equal to

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  3. If ax^2-y^2+4x-y=0 represents a pair of lines , then a is equal to

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  4. What is the equation of the locus of a point which moves such that 4 t...

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  5. If the area of the triangle with vertices x,0,1,1 and 0,2 1, 4 sq unit...

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  7. The probability that A can solve a problem is 4/5 and B can solve it i...

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  8. If the foci of the ellipse (x^2)/(16)+(y^2)/(b^2)=1 and the hyperbola ...

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  9. The differential coefficient of f(sin x) with respect to x, where f(x)...

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  10. If f(x)={((1-cos x)/(x)",",x ne 0),(k",",x=0):} is continuous at x = 0...

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  11. If y = tan^(-1) (sec x - tan x ) , "then" (dy)/(dx) is equal to

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  12. If x+(1)/(x)=2costheta, then x^(n)+(1)/(x^(n)) is equal to

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  13. The value of int(-1)^(1)|1-x| dx is equal to -

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  14. If a sphere of constant radius k passes through the origin and meets t...

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  15. int(dx)/(x^(2) +2x + 2) is equal to

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  16. If the tangent to the curve y=6x-x^2 is parallel to line 4x-2y-1=0, t...

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  17. A four figure number is formed of the figures 1, 2, 3, 4, 5 with no ...

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  18. The number of solutions for the equation x^2 - 5|x| + 6 = 0 is :

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  19. How many numbers of 6 digits can be formed from the digits of number 1...

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  20. The last digit of 7^(2003) is

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