Question # 1

The direction of an angle Θ is determined by its:

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value

magnitude

ratio

sign

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The additive inverse of a real number is a:

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0

-a

a

A numbers exceeds its square root by 6, the number is:

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6

3

9

none of these

Product of a complex number and its conjugate is:

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a real number

irrationalnumber

a complexnumber

either real number or complexnumber

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4

16

8

64

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integer

rationalnumber

irrationalnumber

naturalnumber

Rational numbers are:

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repeating decimals

terminatingdecimals

periodicdecimals

all of these

(x + 3) (x + 4) = x2 + 7x + 12 is:

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The period of sin 2x is:

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π

2π

3π

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none of these

What is the common difference of the sequence 11, 5, -1, ......... ?

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6

-6

none of the foregoing numbers

Conjugate of a- i b is:

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b + ia

-a + ib

-a - ib

a + ib

The product of three G.Ms between 1 and 16 is:

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32

64

128

16

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1

0

2

3

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A

B

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right angled

equilateral

isosceles

obtuse angled

If α, ß, Γ are the angles of a oblique triangle, then:

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α = 90°

ß = 90°

Γ = 90°

none of these

If s denotes the length of the arc intercepted on a circle of radius r by a central angle of α radians, then:

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s = rα

s = r + α

none of these

The reciprocal of the terms of A.P. form:

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A.P

G.P

H.P

none of these

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x = 0, y = 0

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