Question # 1

Vector additon is:

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Commutative

Associative

Commutative and Associative

None of these

i is equal

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(1 , 0)

(0 , 1)

(1 , 1)

(0 , 0)

There may be ______ feasible solution in the feasible region

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Infinite

Finite

Defined

None of above

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

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2n

n²

n/2

2ⁿ

If n is any positive integer then 4ⁿ>3ⁿ+ 4 is true for all

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The additive inverse of 0 is

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1

-1

0

Does not exist

The additive inverse of 2/3 is

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3/2

-2/3

-3/2

0

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If n is any positive integer then n! > n²for

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Period of cos 2x is ______

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For all points (x,y) in third quadrant

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x > 0 , y < 0

x > 0 , y > 0

x < 0 , y < 0

x < 0 , y > 0

For all points (x,y) on x-axis

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x is positive

x is negative

y = 0

y is negative

Domain of 3 sin x is ______

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[-3, 3]

R

Positive real numbers

None of these

Identity w.r.t intersection in a power set of any set is

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∅

Set itself

Singleton set

{0}

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5

25

3

a chord passing through the focus of a parabola is called a:

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Focal chord

Latus rectum

Tangent

Directrix

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1

2

3

4

The lines l1and l2intersect. The shortest distance between them is

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Positive

Negative

Zero

Infinity

If Z₁ = 1+ i, Z₂ = 2+3i , then |Z₁ -Z₂| =?

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√5

√7

-1-2i

√3

The towers each 120 meters high are 800 meters apart. The measure of the angle of elevation from the base of one tower to the top of the other is

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12^𝜊

9^𝜊

7^𝜊

-120^𝜊

Range of tan x is ______

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[-1, -]

R

Negative real numbers

R - {x | - 1 < x < 1}

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{x|x∈R∧x≠x} is a

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Infinite set

Null set

Finite set

None of these

What is the period of 5 cot x=?

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π

-π

π/2

2π

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5 / 12

3 / 8

5 / 8

7 / 4

The minimum value of the quadratic function f(x) = x2 +6x -2, is

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11

6

-11

13

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Associative law of multiplication

Commutative law of addition

Commutative law of multiplication

Associative law of addition

If Cosθ=0, thenθ= ______

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nπ/2

(2n + 1)π/2

(2n - 1)π/2

(4n + 1)π/2

If a polynomial P(x) is divided by x - a, then the remainder is

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P(o)

P(-a)

P(a)

None of these

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