Question # 1

Co-ordinate of a point on the parabola y² = 8x whose focal distance is 4 are:

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(2 , 4)

(-2 ,-4)

(-2, 4)

(2,-4)

The solution set of x < 4 is

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-∞< x < 4

-∞> x > 4

-∞< x < 2

-∞> x > 2

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Evert element of A is in B

Every element of B is in A

Every element of A is in B'

Every element of A is in A

Tan^-11/x = ______

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sin x

sec^-1X

cot^-1X

None of these

The graph of a quadratic function is

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Circle

Straight line

Parabola

Triangle

If A is a skew-symmetric matrix of order n and P, any square matrix of order n.prove that P' AP is

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Skew-symmetric

Symmetric

Null

Diagonal

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2, 3

3, 3

2, 6

2, 4

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3

1

2

4

H₁, H₂, H₃, .... H_nare called n harmonic means between a and b if a, H₁, H₂, H₃, ... H_nb are in

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H.P.

G.P.

A.P.

None of these

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