Question # 1

sin -1(sin2π/3) =

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π/2

2π/3

-3π/2

π/3

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0

1

-1

The magnitude of a vector can never be

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Zero

Negative

Positive

None of these

If z₁ = 1 + 2i, z₂ = 3 + 4i then

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z₁ > z₂

z₁ = z₂

z₁ < z₂

None of these

64.A point (x, y, z) moves parallel to xy plane. Which of the three variables x, y, z remain fixed?

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z

x

y

x and y

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If cosα= 4/5, then cosα/2

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(x3-1/x)12

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295

495

395

722

Every subset of a finite set is

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Disjoint

Null

Finite

Infinite

Two sets A and B are said to be disjoint if

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0

-1

1

not defined

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