Question # 1

Which of the following has the same value as i113

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i

-1

-i

1

The roots of px2 - (p-q)x-q=0 are

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equal

Irrational

Rational

Imaginary

A die is rolled. What is the probability that the dots on the top are greater than 4?

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1/4

1/2

1/3

1/33

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y/x

x/y

y/z

None

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If P = {x/x = p/q where p,q∈ Z and q≠ 0}, then P is the set of

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Irrational numbers

Even numbers

Rational numbers

Whole numbers

The third term of a G.P. is 4, The product of first five terms is

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43

45

46

None of these

Which of the following function form 1 to itself are bi-jective

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F(x) = x + 3

F(x) = x⁵

F(x) = 3x + 2

F(x) = x²+ x

The set of natural no. is closed under

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multiplication

subtraction

difference

division

Range of cos x is ______

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[-1, 1]

R

Negative real numbers

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

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I andII quadrants

II andIII quadrants

II andIVquadrants

none of these

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2x cos x2

2sinxcosx

- sin x2

2x sin x2

Six boys and 3 girls are to be seated at random, in a row, for a photograph. The probability that no two girls will sit together is

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1/12

1/6

5/12

7/12

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0

-1

1

1/2

The order of the matrix A is 3 x 5 and that of B is 2 x 3.The order of the matrix BA is

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2 x 3

3 x 2

2 x 5

5 x 2

The matrix A = [aij]1xn is a

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Vector

Rectangular matrix

Column vector

Square matrix

The fixed point from which all the points of a circle are equidistant is called the

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chord of the circle

centre of the circle

diameter of the circle

radius of the circle

The locus of the centre of a circle which touches two given circles externally is:

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a hyperbola

an ellipse

a circle

a parabola

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Improper rational fraction

Rational fraction

Proper rational fraction

None of above

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x³- x²+ x + c

6x - 2 + c

x³- 2x + c

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images

pre-images

constants

none of these

If P is a whole number greater than 1, which has only P and I are factors. Then P is called

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Wholw number

Prime number

Even number

Odd number

Range of 3 sin x is ______

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[ -3, 3]

[-1, 1]

R

None of these

The line y = 2 x + c is a tangent to the parabola y²= 16 x if c equals

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-2

-1

0

2

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An empty set

Universal set

A singleton set

None of these

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A sequence is a function whose domain is

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N

Subset of N

R

None of these

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