Question # 1

Geometrically, the modulus of a complex number represents its distance from the

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Point (1, 0)

Point (0, 1)

Point (1, 1)

Point (0, 0)

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An upper triangular matrix

A lower triangular matrix

A diagonal matrix

A null matrix

Any recurring decimal represents a

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Irrational no

Integer

Rational no

None of these

The number of different ways of describing a set is

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One

Two

Three

Four

The set of all antiderivaties of f(= ∫f(x)dx) is the

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Definite integral

Indefinite integral

Integral

Area

The additive inverse of 1 is

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1

-1

0

Does not exist

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0

1

-2

10

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

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1

i

-1

-i

If f:A→B is an injective function and second elements of no two of its ordered pairs are equal, then f is called

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1-1 and onto

Bijective

1-1 and into

None of these

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

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10

32

16

5

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The quadratic equation 8 sec²θ- 6 secθ+1 = 0 has

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Infinitely many roots

Exactly two roots

Exactly four roots

No roots

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

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Polynomial

Equation

Improper rational fraction

Proper rational fraction

The vertex of the graph of the quadratic function f(x) =-x2+6x+1,is

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(-3,10)

(-3,-10)

(3,10)

(3,-10)

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Less then 1

Equal to 1

Greater than 1 but less then 2

Greater then or equal to 2

The coefficient of x¹⁰in the expansion (x³+3/x²)¹⁰is

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1700

17023

17027

17010

i¹⁰¹=

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i

i²

-i

-1

The angle AOP which the ray from an observer's eye at O to an object at P at a lower level makes with horizontal ray OA through O is called the

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Angle of depression

Angle of elevation

Acute angle

Obtuse angle

The corner point of the boundary lines, x- 2x

x+2y=10 is:

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(8,1)

(1,8)

(6,10)

(3,5)

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The sum of first n even number is

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n2

n(n+1)

n+1

n+2

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If x, y, z are the pth, qth, rth terms of an A.P. and also of G.P., then x^y-z. y^z-x. z^x-yeqals

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xyz

0

1

None of these

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Z is a group under

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Subtraction

Multiplication

Addition

None of these

G is geometric mean between a and b if a, G, b is

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A.P.

G.P.

H.P.

None of these

A function which is to be maximized or minimized is called an

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Explicit function

Implicit function

Objective function

None

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