Question # 1

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5x^{4 + c}

1/6 x⁶+ c

5x²+ c

1/5 x⁶+ c

A = [3] is a/an

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Square matrix

Scalar matrix

Diagonal matrix

Identity matrix

The set of the first elements of the ordered pairs forming a relation is called its

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Function on B

Range

Domain

A into B

The expansion of (1 - 3x)^-1is valid if

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| x | < 1

| x | < 3

| x | < 1/3

None of these

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If 2 tan¹(cos x) = tan^-1(cosec²x), then x is equal to

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π/ 3

π/ 2

π/ 6

π

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

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A²

A³

A

None of above

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The centre of the conic x2 +16x +4y2 -16y +76 =0 is

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(0,10)

(-8,4)

(-8,-2)

(1,1)

The ortho center of triangle whose vertices are (0,0)(3,0)(0,4) is

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(0,0)

(1,1)

(2,2)

(3,3)

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Commutative property of addition

Closure property of addition

Additive inverse

Associative property w.r.t. to addition

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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

Probability of an impossible event is

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0

-1

1

∞

The tangents drawn from the point P to a circle are imaginary if

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P is on the circle

P is inside the circle

P is outside the circle

none of these

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2

1

5

0

If a set S contains n elements then P (S) has ........ number of elements

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2ⁿ

2ⁿ²

2.n

n²

The formula an = arn-1represents

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nth term of G.P

Sum of the first n terms

G.M between a and b

None of these

f(x) = ax + b will be an identity function if

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a = 1 , b = 1

a = 1 , b = 0

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 square matrix A is skew Hermitian when (A)'=

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A

A'

-A

A

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Two real roots

Two positive roots

Two negative roots

One positive and one negative root

If 5,7 and 9 are A.Ms between a and b, then a and b is equal to

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2 and 12

1 and 10

3 and 11

-7 and 2

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I

|A|

|A| I

None of these

The obtuse angle between lines = -2 and y = x +2 is

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120°

135°

150°

140°

x = secθ,y = tanθ are the parametric equations of

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Circle

Hyperbola

Ellipse

parabola

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none of these

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0

1

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