Question # 1

The matrix A = [aij]mxn with m ≠n is always

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Symmetric

Hermition

Skew-symmetric

None

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120

5

4

6

A polynomial of arbitrary degree

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f(x) = o

f(x) = x

f(x) = a

f(x) = ax + b,a ≠ 0

A circle which touches one side of a triangle externally and the other two sides produced is called ______

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In-circle

Circum cirle

Escribed circle

None of these

f (x) = | x | is a/an

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Injective function

Bijective function

Surjective function

Implicit function

√25 is a number

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Rational

Irrational

Natural

Odd

Which of the following is an identity matrix?

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none of these

The set R is ______ w.r.t subtraction

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Not a group

A group

No conclusion drawn

Non commutative group

The set {-1, 1} is closed under the binary operation of

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Addition

Multiplication

Subtraction

Division

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sin x + c

-sin x + c

cos x + c

-cos x + c

The expansion of (1 + 2x)^-2is valed if

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| x | < 1/2

| x | < 1

| x | < 2

| x | < 3

If Z = (1,2), then Z^-1 =?

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(0.2, 0.4)

(-0.2 ,0.4)

(0.2,-0.4)

(-0.2,-0.4)

Multiplicative inverse of "1" is

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0

-1

1

{0, 1}

A sequence is a functions whose domain is a subset of the set of

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Natural numbers

Real numbers

Whole numbers

Rational numbers

The element range of sequence are called

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Series

progression

Members

Terms

Cycle tyres are supplied in lots of 10 and there is a chance if 1 in 500 tyres to be defective. Using Poisson distribution, the approximate number of lots containing no defective tyre in a consignment of 10, 0000 lots is

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9028

9208

9802

9820

A fraction in which the degree of the numerator is less the degree of the denominator is called

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Polynomial

Proper fraction

Rational fraction

None

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The angle of elevation of a tower from a point A due south of it is x and from a point B due east of A is y. If AB = 1, then the height h of the tower is given by

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The sum of indicated terms of a sequence is called

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Arithmetic series

Series

Harmonic series

None of these

The point ________ is in the solution of the inequality 4x - 3y < 2

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(0,1)

(2,1)

(2,2)

(3,3)

Inequalities have ______ symbol

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2

3

4

1

For three consecutive terms in A.P middle term is called

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A.M

nth term

Central term

None of these

The value of the expression 3 cosθ+ 4 sinθθlie between

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-7 and 7

-25 and 25

-1 and 1

-5 and 5

The set of all points in the plane that are equally distant from a fixed point to called a

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Parabola

ellipse

Hyperbola

Circle

The equation of the circle with centre (5, -2) and radius 4 is

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(x-5)²+ (y+2)²= 16

(x-5)²+ (y+2)²= 4

(x-5)²+ (y-2)²= 16

(x-5)²+ (y-2)²= 4

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A^-

A^t

-A

A

An even function is symmetric about the line

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y = x

x = 0

y = -x

y = 0

For every positive integers n 1+5+9+....+ (4n - 3) is

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n(2n - 1)

(2n - 1)

n - 1

n

The n numbers A₁,A₂,A₃,.....A_nare called an arithmetic means between a and b if a.A₁,A₂,A₃.....A_n, b is ______

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An arithmetic series

An arithmetic sequence

A geometric sequence

A harmonic sequence

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additive property

multiplicative property

additive inverse

additive identity

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