Question # 1

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0

1

2

3

The behavior of trigonometric function is called

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Continuity

Discontinuity

Periodicity

Smoothness

√(-1b) =?

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b i

-i b

b2

i√b

The expansion (1 + x)^-3holds when

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|x| > 1

|x| < 1

x < 1

x > 1

The centre fo the circle x²+ y²+ 12x -10 = 0 is

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(12, -10)

(6, -5)

(-12, 10)

(-6, 5)

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The towers each 120 meters high are 800 meters apart. The measure of the angle of elevation from the base of one tower to the top of the other is

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12^𝜊

9^𝜊

7^𝜊

-120^𝜊

The product of complex numbers (a,b) and (c,d) is

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(ac, bd)

(ac-bd, ad+bc)

(ab,cd)

(ac+bd,ad-bc)

The identity element with respect to subtraction is

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0

1

-1

Does not exist

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The set of all positive even integers is

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Not a group

A group w.r.t subtraction

A group w.r.t division

A group w.r.t multiplication

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