Question # 1

The set {{a,b}} is

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Infinite set

Singleton set

Two points set

None

The area of circle of unit radius =

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0

1

4

π

A tower subtends an angleαat a point on the same level as the root of the tower and at a second point, b meters above the first, the angle of depression of the foot of the tower isβ. The height of the tower is

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b cotαtanβ

b tanαtanβ

b tanαcotβ

None of these

If a^x= b^y= c^zand a, b, c are in G.P. then x, y, z are in

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A.P.

G.P.

H.P.

None of these

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Proper fraction

Improper fraction

Rational fraction

None of these

Sin 270° = ______

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-1

0

1

Undefined

(0,1) is in the solution of the inequality

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3x + 2y > 8

2x - 3y < 4

2x + 3y > 5

x -2y < -5

f(x) = x is

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trigonometric function

exponential function

quadratic function

identify function

The set {Z\ {0} } is group w.r.t

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Addition

Multiplication

Division

Subtraction

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