Question # 1

y = sin^-1 x if and only if x = sin y, where:

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

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32

64

128

16

If two sets have no element common, they are called:

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disjoint

over lapping

dissimilar

exhaustive

tan (-135°) =

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0

1

√2

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x = 0, y = 0

In any triangle ABC, law of tangents is:

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all of these

The graph of x = sin y is obtained by reflecting the graph of y = sin x about the line:

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x axis

y axis

y = x

y = -x

If sin α < 0 and cos α > 0, then α lies in:

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I

II

III

IV

In a triangle ABC b = √3, c = 1, α = 30° then a = :

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2

1

3

-1

The period of sin 2x is:

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π

2π

3π

If 2s = a + b + c, where a, b, c are the sides of a triangle ABC, then area of triangle ABC is given by:

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The circum-radius R of a triangle is given by:

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Sum of all three cube roots of unity is:

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1

-1

0

3

What is called the difference between two consecutive terms of an arithmetic sequence ?

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common ratio

common difference

common element

none of these

Equations having a common solution are called:

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linear

quadratic

homogeneous

simultenaeous

For what value of k, the sum of the roots of the equation x² + kx + 4 = 0 is equal to the product of its roots:

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±1

4

±4

-4

Which one is not a quadrant angle ?

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0°

90°

280°

270°

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2 cos α cos ß =

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sin (α + ß) - sin (α - ß)

cos (α + ß) - cos (α - ß)

cos (α + ß) + cos (α - ß)

sin (α + ß) + sin (α - ß)

In 2s = a + b + , then in any triangle ABC:

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all of above

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i

0

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