Question # 1

Roots of the equation 2x²- 7x + 3 = 0 are

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Rational

Irrational

Complex

None of these

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c = 0

c = -1

c = -2

c = 1

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If the terminal rays of an angle falls on any axis then the angle is called

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Allied angle

Acute angle

Standard position

Quadrantal angle

The direction cosines of y-axis are

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1, 0, 0

0, 1, 0

0, 0, 1

1, 1, 1

What is the number of elements of the power set of {0, 1}

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1

2

3

4

The point R dividing externally the line joining the points P(x₁, y₁) and Q(x₂, y₂) in the ratio k₁: k₂has the coordinates

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The distance between the points A(3,1) and B(-2,-4) is

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5

25

10

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If w+w2 is a root of (x+1)(x+2)(x+3)(x+4) = k, then

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k=0

k=1

k=w

k=w2

cos^-1(cos x) =

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x

cos x

x = 1/x

cos^-2 x

If f(x) = x + 1 then f(z²-1) is

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z²

z²+ 2

z²- 2

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 law of cosines reduces to a2 +c2 =b2 for

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α = 90°

β = 90°

γ = 90°

α +β +γ =180°

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The set which has no proper subset is

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{0}

{}

{∅}

None of these

cos (α-β) = cosαcosβ+ sinαsinβis true for all

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α>β> 0

α>β

β>α

None of these

A rule that assigns to each elements x in X a unique element y in Y is called a ____________

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domain

range

function

none of these

The period of the function f(x) = sin⁴x + cos⁴x is

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π

π/2

2π

None of these

The area between the x-axis the curve y =4x-x2 is :

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32/2

15

18

21

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An ellipse

A parabola

A circle

A hyperbola

If you are looking someone on the ground from the top of a hill the angle formed is called angle of _______;

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Elevation

Depression

Right angle

None off these

Number of conics is

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1

3

2

4

The difference of two consecutive terms of an A.P. is called ______

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General term

Common ratio

Common difference

None of these

The solution set of the equation |3x + 2| = 5 is

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If (2, 3) is the mid point of (a, 3) and (5, b) then

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a = 1 , b = -3

a = -1 , b = 3

a = 1 , b =3

a = -1 , b = -3

1 radian = _____

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60°

57.296°

57.2°

180°

The 6th term of the sequence 7,9,12,16......is

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27

32

20

19

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ab=-1

ab = 1

ab = 2

None

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a cot(ax + b) + c

- a cot(ax + b) + c

an -an-1,∀n∈N∧n>1 in an A.P is called

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Common difference

nth term

Common ratio

None of these

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