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The equations 3x – 7y + k = 0 and 12x – ...

The equations 3x – 7y + k = 0 and 12x – ly + 36 = 0 have infinitely many solutions if

A

l = 28, k `ne `9

B

l = 28, k = 9

C

l `ne` 28, k = 9

D

`l ne 28, k ne 9`

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XII BOARDS PREVIOUS YEAR-CUET MOCK TEST SET 1-PART – B (SECTION – III MATHEMATICS )
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  2. If the roots of the equation ax^2+bx+c=0 where a ne 0 and c ne 0 and ...

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  3. The equations 3x – 7y + k = 0 and 12x – ly + 36 = 0 have infinitely ma...

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  4. If p = 10.235235235……then p =

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  5. Which of the following sets of ordered pairs is a function from A onto...

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  6. A cube root of i is

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  7. The coefficient of x^4 in the series expansion of e^(1–2x) is

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  8. The solution (x, y, z) of the system 3x – 2y + z = 2, 2x – y + 3z = ...

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  9. A=[(5,0,0,1),(0,2,4,3),(6,1,0,0)],B=[(1,3),(0,4),(2,0),(1,2)] and AB=C...

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  10. If A=[(3,1,2),(4,0,5),(-1,3,-4)],A^(-1)=B=(b)(ij) then b(32) is

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  11. From a box containing three pink, four orange and two blue marbles, tw...

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  12. (2cis 30^(@))^2/(4cis 60^(@))^(3) is equal to

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  13. If 1 + 5 + 9 + …..x = 780 then x is

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  14. The length of a tangent drawn from the point (– 2, – 4) to the circle ...

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  15. For the ellipse 9x^2 + 36y^2 = 324 the eccentricity, length of the maj...

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  16. lim(xto0)(abs(x))/x as is

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  17. The value of c and k that make the function {(x+2c,x le 2),(3cx+k, 2...

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  18. A ball is thrown vertically from the top of a house 112 ft high. Its e...

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  19. If f (x) = (x - 4)^2 (x + 2), then which only one of the following sta...

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  20. The volume of the solid obtained by revolving the curve y = x^3 about...

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