Question # 1

A die is rolled. The probability that the dots on the top are greater than 4 is:

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5, 6

1

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The ordered pairs (2, 5) and (5, 2) are:

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not equal

equal

disjoint

empty

If a set is described by listing its elements within brackets is called:

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set builder notation

tabular form

descriptive method

none of these

Which one is a quadrant angle ?

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60°

180°

120°

30°

In any triangle ABC, law of cosines is:

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A matrix of order m×1 is called:

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row matrix

column matrix

identity matrix

scalar matrix

180° = _____________:

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π radians

In a right isoceles triangle, one acute angle is:

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30°

45°

60°

75°

If a_n-1 = 2n - 3 then a_n+1 =

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2n - 1

2n + 1

2n + 3

none

A dice is rolled, the probability of getting a number which is even or greater than 4 is:

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none of these

What is called the arrangement of numbers formed according to some definite rule ?

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arithmetic sequence

geometricsequence

sequence

none of these

If z = x + i y = r (cos Θ + i sin Θ), then arg z is:

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tan Θ

cos²Θ + sin²Θ

r

Θ

Probability of a certain event is:

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0

1

>1

∞

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25

20

40

2a + 2b + 2c

If 2s = a + b +c, then in any triangle ABC:

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none of these

If each element in any row or each element in any column of a square matrix is zero, then value of the determinant is:

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0

1

-1

none of these

Number of ways of arranging 5 keys in a circular ring is:

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12

24

6

5

What is the general term of the sequence 2, 4, 6, 8, ........... ?

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2n

n + 1

2n²

none of these

The graph of x = sin y is obtained by reflecting the graph of y = sin x about the line:

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x axis

y axis

y = x

y = -x

For what value of k, the sum of the roots of the equation x² + kx + 4 = 0 is equal to the product of its roots:

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±1

4

±4

-4

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