Question # 1

Which of the following is not a quadrantal angle

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90°

100°

180°

270°

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2

6

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6

20

0

Domain of sinθis

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Set of real numbers

Set of complex numbers

Set of natural numbers

Set of even numbers

Two matrices A and B are conformable for the product AB if

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Both A and B are square

Both A and B are symmetric

Number of rows of A = number of columns of B

Number of columns of A = number of rows of B

A - B = ______

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The coefficient of the third term of (8a-b)^1/3, after simplification is

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-228

1/288

1/220

-1/177

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Associative law of addition

Commutative law of addition

Additive identity

Closure law of addition

For≥ -2 , 1+3+5+......+(2n+5)

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(n+2)²

(n-2)²

2n+1

(n+3)²

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(-1, 2)

(-1, 1)

(1, 2)

{-1}

Sin 270° = ______

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-1

0

1

Undefined

If for the matrix A,A5 = 1,then A-1=

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A2

A3

A

None of above

The set of real numbers is a subset of

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The set of natural numbers

The set of rational numbers

The set of integers

The set of complex numbers

Period of cosec x is ______

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The set {Z\ {0} } is group w.r.t

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Addition

Multiplication

Division

Subtraction

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If one root of the equation x²- 3x + a = 0 is 2 then a = ______

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0

1

2

3

Three integers are chosen at random from the first 20 integers. Then probability that their product is even, is

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2 / 19

3 / 29

17 / 19

4 / 19

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Principle of equality of fractions

Rule for product of fractions

Golden rule of fractions

Rule for quotient of fractions

A person standing on the bank of a river observes that the angle of elevation of the top of a tree on the opposite bank of the river is 60° and when he retires 40 meters away from the tree the angle of elevation becomes 30°. The breadth of the river is

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40 m

30 m

20 m

60 m

Period of cot x is ______

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1

-1

0

None of these

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What is the period of 5 cot x=?

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π

-π

π/2

2π

The principal value of sin-1√(3/2) is

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-π/3

π/3

2π/3

π/2

The behavior of trigonometric function is called

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Continuity

Discontinuity

Periodicity

Smoothness

Write down the power set of {9, 11}

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If a cone is cut by a plane perpendicular to the axis of the cone, then the section is a

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Parabola

Circle

Hyperbola

Ellipse

An integer is chosen at random from the number ranging from 1 to 50. the probability that the integer chosen is a multiple of 2 or 3 or 10 is

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3 / 10

5 / 10

7 / 10

9 / 10

The line y = 2 x + c is a tangent to the parabola y²= 16 x if c equals

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-2

-1

0

2

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