Question # 1

We solve the system of non-homogeneous linear equations by

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a and b

b and c

c and a

a,b and c

The A.M. of two numbers is 34 and G.M. is 16, the numbers are

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2 and 64

64 and 3

64 and 4

None of these

The number of different ways of describing a set is

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One

Two

Three

Four

The angle between lines xy =0 is

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45°

60°

90°

180°

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

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For any equilateral r :R :η :r1 :r2 :r3 =

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1:2:3:4:5

1:2:3:3:3

1:2:4:4:4

2:1 :2 :2 :2

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If the line 2x -y +k =0 is a diameter of the circle x2 +y2 +6x -6y +5 =0 then k is equal to

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12

9

6

3

Period of cosec x is ______

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graph of sine function is bounded between lines

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y± 1 = 0

x± 1 = 0

x± y - 0

None of these

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The mid point of the line segment joining the points (3,-1) and (-3,1) is

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(3,-1)

(0,0)

(2,2)

(4,4)

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-2

-1

1

2

Matrices are represented by

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Natural numbers

Real numbers

Small letters

Capital letters

The perpendicular bisector of any chord of a circle

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Passes through the centre of the circle

Does not pass through the centre of the circle

May or may not pass through the centre of the circle

None of these

The solution set of sin x + cos x = 0 is

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The number of non zero rows in echelon form of a matrix is called

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Order of matrix

Rank of matrix

Row operation

None of these

If a_n= 2n -3, write the first four terms

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-3, -1, 1, 3

1, 3, 5, 7

-1, 1, 3, 5

None of these

A fixed point which lies on the axis of the cone is called its:

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axis

apex

plane

diameter

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

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120°

135°

150°

140°

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9/4

4/9

1

None of these

f(x) = x3-x/x2+1 is :

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an even function

an odd function

an even and implicit function

neither even nor a odd

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Natural numbers

Whole numbers

Integers

Rational numbers

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For any real numbers x,y,xy=o ⇒

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x ≠ 0 ∧ y ≠ 0

x = 0 ∨ y = 0

x = 0

y = 0

Product of any n consecutive positive integers is divisible by

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n

√n

n!

None

The number of real tangents that can be drawn to the ellipse 3x²+ 5y²= 32 passing thro. (3, 5) is

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0

1

2

Infinite

If 4 sin²θ=1, then values ofθare

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If the angle between two vectors with magnitude 6 and 2 is 60° when their scalar product is

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12

6

3

0

cos2a=______;

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cos2 a-sin2 a

2cos2 a-1

1-2 sin2 a

All of these

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