Question # 1

i^-(4n+2)= -------------------------------

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1

i

-1

-i

The set of natural numbers is a subset of

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{1, 2, 3, .... 100}

The set of whole numbers

{2, 4, 6, 8, .....}

None of these

The roots of the equation x2 +6x-7=0,are

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1

2

1 and -7

-7

Cosec 60° = ______

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The mid point of the line segment joining the points (3,-1) and (-3,1) is

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(3,-1)

(0,0)

(2,2)

(4,4)

2/9,5/7∈ R,(2│9)(5│7)=10/63∈R this property is called

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Associative property

Identity property

Commutative property

Closure property w.r.t multiplication

Area bounded between the curve xy=2 and the lines x=1 and x=2

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ln2 square units

ln√2 square units

ln4 square units

Square units

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A parabola

An ellipse

A hyperbola

A circle

The general value ofθsatisfying the equation 2 sin²θ- 3 sinθ-2 = 0 is

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0! = ______

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0

1

2

Not defined

In R the left cancellation property w.r.t addition is

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A square matrix all of whose elements except the main diagonal are zeros is called a

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Null matrix

Singular matrix

Symmetric matrix

Diagonal matrix

The set of complex numbers forms a group under the binary operation of

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Addition

Multiplication

Division

Subtraction

The fixed point from which all the points of a circle are equidistant is called the

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chord of the circle

centre of the circle

diameter of the circle

radius of the circle

For all points (x,y) in first quadrant

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x > 0 , y < 0

x > 0 , y > 0

x < 0 , y < 0

x < 0 , y > 0

A committee consists of 9 experts taken from three institutions A, B, and C, of which 2 are from, A, 3 form B and 4 from C. If three experts resign, then the probability that they belong to different institutions is

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1 / 729

1 / 24

1 / 21

2 / 7

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Associative law of multiplication

Commutative law of addition

Commutative law of multiplication

Associative law of addition

In a class of 100 students, 60 drink tea, 50 drink coffee and 30 drink both. A student from his class is selected at takes at last one of 2 drinks is

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2 / 5

3 / 5

4 / 5

None of these

The value of cos(cos-1 1/2) is

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1/2

√3/2

-1/2

1/√2

For trival solution |A| is

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A

|A| is non zero

A = 0

None of these

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{x : xε Z and x < 1} is

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Singleton set

A set with two points

Empty set

None of these

n different objects can be arranged taken all at a time in ______

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(n + 1)! ways

(n - 1)! ways

n! ways

n ways

The equation of the circle witch centre (-3, 5) and radius 7 is

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(x-3)²+ (y+5)²= 7²

(x-3)²+ (y-5)²= 7²

(x+3)²+ (y+5)²= 7²

(x+3)²+ (y-5)²= 7²

The additive identity of real number is

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1

2

1/2

0

x = r2, y = 1 are the parametric equation of

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Circle

Hyperbola

Ellipse

Parabola

Corner point of the system x - y≤ 2,x + y≤ 4,2x -y≤ 6,x≥ 0,y≥ 0

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(1,4)

(4,2)

(3,1)

(4,1)

For what value of k, 3x -2y+ k= 0 is tangent to the circle x2 +y2 +6x -4y =0

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k=0

k=0 or 26

k = 26

k=-13

The set of natural is a semi group w.r.t

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Addition

Division

Subtraction

None of these

What is the circular measure of the angle between the hands of a watch at 4 O'clock

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