Question # 1

A number A is called the arithmetic mean between a and b if a, A, b is ______

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Arithmetic sequence

Geometric sequence

Harmonic sequence

Arithmetic sequence

sin h x = ___________

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Three dice are thrown together. The probability of getting a total of at least 6 is

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103 / 108

10 / 216

93 / 108

None of these

The set {1, 2, 3, 4, ....} is called

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Set of Natural numbers

Set of whole numbers

Set of rational number

Set of irrational numbers

The coefficient of x¹⁸ in (ax⁴-bx)⁹ after expansion is

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84a³ b⁶

22a³b⁶

27a⁴b⁵

28a³b⁶

The equation of the circle with centre (h, k) and radius r is

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(x+ h)²+ (y+ k)²= r²

(x+ h)²+ (y - k)²= r²

(x - h)²+ (y+ k)²= r²

(x - h)²+ (y - k)²= r²

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[0, 0, 0]

[1, 0, 0]

[0, 1, 0]

[0, 0, 1]

tan(2π+θ) = ________;

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tanθ

-tanθ

cotθ

-cotθ

By expressing sin 125° in terms of trigonometrical ratios, answer will be

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sin 65° = 0.9128

sin 55° = 0.8192

sin 70° = 0.5384

sin 72° = 0.1982

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0

-1

1

-2

Minor of an element a_ijis denoted by

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M_ij

A_ij

|A|

None of these

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12

13

14

15

The area under the curve y = 1/x² between x = 1 and x =4 is:

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-25

0.75

-0.35

-10

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-10

10/7

-10/7

-7/10

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∀ a ε R ∃ o ε R such that a + v = 0 + a = a is property of

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Commutative law of addition

Associative law of addition

Additive identity

Additive inverse

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In(x²- x + 1) + c

In(2x - 1) + c

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Domain of tangent function is

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I and III quadrants

II and III quadrants

I and II quadrants

II and IV quadrants

Onto function is also called

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Binjective function

Injective function

Surjechive function

None of these

The equation of the parabola with directirx x = 2 and the axis y = 0 is

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y²= 8x

y²= -8x

y²= 4x

y²= -4x

The number of significant numbers which can be formed by using any number of the digits 0, 1, 2, 3, 4 but using each not more than once in each number is

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260

356

410

96

i¹⁰¹ =

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i

i²

-i

-1

A matrix in which the number of rows is not equal to the number of columns is called a

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Diagonal matrix

Rectangular matrix

Square matrix

Scalar matrix

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x^-2+ c

not possible

The distance of the point (2, -3) from x-axis is

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-2

-3

2

3

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