Question # 1

The range of y = cos^-1 x function is:

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If z₁ = 4i and z₂ = 3 - 9i, then z₁ + z₂ =

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3 - 5i

3i - 5

7 - 9i

3 + 5i

7th term of G.P 3, 6, 12 ..... is:

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512

192

48

96

The period of tan 3x is:

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The angles 90°±Θ, 180°±Θ, 270°±Θ, 360°±Θ, are the:

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composite angles

half angles

quadrantal angles

allied angles

G.M between -2i and 8i is:

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4 or -4

4i or -4i

2 or -2

none

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

tan (270° + Θ) is equal:

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cot Θ

tan Θ

-cot Θ

-tan Θ

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1 + cos Θ

1 - cos Θ

Conjugate of complex number (-a, -b) is:

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(-a, b)

(-a, -b)

(a, -b)

none of these

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Sequences are also called:

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Series

Progressions

Means

Convergence

The number of subsets of a set having three elements is:

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2

3

4

8

The distance between the points P(x1, y1) and Q(x2, y2) is:

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10π

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40

-40

26

-26

If α, ß are complex cube roots of unity, then 1 + αⁿ + ßⁿ = .......... where n is a positive integer divisible by 3:

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1

3

2

4

If set A = {1, 2, 3} and B = {1, 2, 3} then sets A and B are:

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not equal

equal

disjoint

overlapping

If each element of a 3 × 3 matrix A is multiplied by 3, then the determinant of the resulting matrix is:

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|A|³

27|A|

3|A|

9|A|

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