Question # 1

If y=f(x) is a function then x is called

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dependent variable

independent variable

constant

none of these

The range of the principal sine function is

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For f(x) = x² + px +1, if f(3) = 3 then P =

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3/7

-2/5

-7/5

-7/3

The number of permutations of n objects of which there are n₁like of one kind, n₂like of the second kind and n₃like objects of third kind are

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30° = ______

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n(A)

n(B)

0

1

Multiplicative inverse of "1" is

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+- 1

0

1

None of these

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(-6,4)

(-3,2)

(6,-4)

(3, -2)

Sin^-1 (-x) =

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Cos^-1 1/x

-Sin^-1 X

1/sin-1x

Sin^-1 1/x

If the angle between two vectors with magnitude 8 and 2 is 60° then their scalar product is

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12

8

16

1

Period of Sin 2x =

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π

4π

2nπ

2π

Cos^-1 x =

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∏ = sin^-1 x

∏ + sin^-1 x

∏/2 - sin^-1 x

∏/2 +sin^-1 x

The gradient of the line joining (1,4) and (-2,5) is

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3/8

-2 2/3

-1/3

2

If the 9^th tern of A.P is 8 and the 4^th term is 20. then the first term is

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1

2

-2

-1

Which is not included in the domain of Cos^-1 x

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0

1

-1

2

Graph of the equation X² + y² = 4 is

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a circle

an ellipse

a parabola

A square

Sec^-1 x=

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Cos^-1 1/x

Cosec^-1 1/x

Cos-1 (-x)

Tan^-1 x

In the figure PS is perpendicular to QR, if PQ = PR 26 and P8 = 24,then QR=

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10

20

40

26

If any two rows (or any two columns) of a square matrix are inter changed, the determinant of the resultant matrix is

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True

False

Fallacious

Some times true

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