Question # 1

The maximum value of the quadratic function f(x) = -2x2+20x,is

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4

3

50

7

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0

-4

none of these

2x + 3y > 4 is a linear inequality in

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one variable

two variables

three variables

none of these

If C={p/p < 18, p is a prime number}, then C =

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{2,3,4,.........17}

{2,4,6,8................16}

{1,3,5,7,9,11,13,15,17}

{3,6,9,12,15}

The principal value of sin^-1(-1/2)

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π/3

π/4

π/6

-π/6

The projections of a line segment on x, y, z axes are 12, 4, 3. The length and the direction cosines of the line segment are

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The angles of elevation of the top of a tower at the top and the foot of a pole of height 10 m are 30° and 60° respectively. The height of the tower is

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10 m

15 m

20 m

None of these

If | x | < 1, then the first two terms of (1 - x)^1/2are

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0

1

-1

None

Write the first four terms of the arithmetic sequence 5, 2, -1, ... is

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3

-4

7

1

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I

14 I

0

None of these

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0

1

2

None of these

The set of rational number is represented by

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W

R

Q'

Q

If 4 - x >5, then

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x > 1

x > -1

x < 1

x < -1

If there are m rows and n columns in a matrix then its order is

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m x n

m x m

n x n

n x m

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

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π

π/2

2π

None of these

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

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x is positive

x is negative

y = 0

y is negative

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none of these

The multiplicative inverse of x such that x = 0 is

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-x

does not exist

1/x

0

A chord passing through the centre of the circle is called

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the secant of the circle

the tangent of the circle

the arc of the circle

the diameter of the circle

The multiplicative inverse of -1 in the set {1-, 1} is

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1

-1

0

Does not exist

Point (2,0) lies on trigonometric function f(x)=______;

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sinx

cosx

tanx

secx

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2

4

8

12

Given X,Y are any two sets such that number of elements in set X = 28, number of elements in set Y = 28, and number of elements in set X∪Y = 54, then number of elements in set X ∩ Y =

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4

3

2

1

Considering Cosine Rule of any triangle ABC, possible measures of angle A includes

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Angle A is obtuse

Angle A is acute

Angle A is right-angle

All of above

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