Question # 1

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

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arithmetic sequence

geometricsequence

sequence

none of these

csc (2π - Θ), where Θ is a basic angle, will have terminal side in:

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quad. I

quad. II

quad. III

quad. IV

Complex roots of real quadratic equation always occur in:

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conjugate pair

ordered pair

reciprocal pair

none of these

If A = {1, 2, 7, 9}, B = {1, 4, 7, 11}:

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disjoints sets

equal sets

overlapping sets

complementary sets

A.M between 1 + x - x² and 1 + x + x² is:

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1 + x²

1 + x

2

none

If the initial side of an angle is the positive x-axis and the vertex is at the origin, the angle is said to be in the _____________:

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initial position

finalposition

normalposition

standardposition

The value of ⁵C₂ is:

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1

10

20

30

Sum of all four fourth roots of unity is:

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1

0

-1

3

In any triangle ABC, law of sines is:

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30°

45°

60°

75°

A matrix of order m×1 is called:

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row matrix

column matrix

identity matrix

scalar matrix

If the Discriminant of a quadratic equation is a perfect square, then roots are:

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real and equal

complex

rational

irrational

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i² + 1 =

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-1

0

i

1

If P(x) is a polynomial of degree m and Q(x) is a polynomial of degree n, the product P(x) . Q(x) will be a polynomial of degree:

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m . n

m - n

m + n

m × n

If any two rows of a square matrix are interchanged, the determinant of the resulting matrix:

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is zero

is multiplicative inverse of the determinant of the original matrix

is additive inverse of the determinant the original matrix

none of these

The sum of 10 A.Ms between 3 and 47 is:

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50

250

100

500

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When a rational fraction is separated into partial fractions, the result is:

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{2, 4, 6, 8, ...........} represents the set of:

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positive odd numbers

natural numbers

prime numbers

positive even numbers

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