Question # 1

Cos 60° = ______

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1

2

1/2

3

The number of subsets of B = {1,2,3,4,5}

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10

32

16

5

If two balls are drawn from a bag containing 3 white, 4 black and 5 red balls. Then the probability that the drawn balls are of different colours is

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1 / 66

3 / 66

19 / 66

47 / 66

The square matrix A is skew-symmetric when At =

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-B

-C

-A

-D

A point of a solution region where two of its boundary lines intersect, is called

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Boundary

Inequality

Half plane

Vertex

The set {x +iy / x, y ∈ Q} forms a group under the binary operation of

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Addition

Multiplication

Division

Both addition and multiplication

The sides of a right angled triangle are in A.P The ratio of sides is

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1:2:3

3:4:5

2:3:4

5:8:3

If n is add the expansion (a + x)ⁿhas middle terms

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2

3

4

5

In one hour, the hour hand of a clock turns through

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x²+ x - 6 = 0 is

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An equation

An identity

A polynomial

None of these

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sin^-1 x =

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tan^-1 x

Cosec^-1 x

Cosec x

cosec^-1(1/x)

If ab > 0 and a < 0, which of the following is negative?

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b

-b

-a

(a - b)²

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none of these

Coordinates of the focus of the parabola x² - 4x -8y-4=0 are:

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(0,2)

(,0,1)

(2,0)

(1,2)

Roots of the equation x²+ 5x - 1 = 0 are

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Rational

Irrational

Complex

None of these

Cofactor of an element aij denoted by Aij is

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(-2)i+j

Mij

(-1)i+j Mij

None of above

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none of these

Out of 10, 000 families with 4 children each, the number of families all of whose children are daughters is

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375

500

625

150

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-1

0

1

undefined

Which of the following is the definition of singleton

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The objects in a set

A set having no element

A set having no subset

None of these

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A positive integer

A negative integer

A natural number

An irrational number

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e^x+ c

e^-x+ c

x e^x+ c

not possible

Digit in the unit place of the number 183! + 3¹⁸³

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7

6

3

0

The5thand 13th terms of an A.P are 5 and-3 respectively The first term of the A.P is

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1

-15

9

2

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The feasible region which can be enclosed within a circle is called

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Bounded region

Convex region

Unbounded region

None

If a, b, c are the measures of the sides of a triangle then

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If n(A) = n then n(P(A)) is

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2n

n²

n/2

2ⁿ

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