Question # 1

A function f is said to be an even if f(-x) =

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0

1

f(x)

-f(x)

Ifπ≤x≤2π, then cos-1 (cos x)=

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cos x

-x

1/x

-x

What is the number of elements of the power set of { }

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0

1

2

3

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none of these

The set of ordered pairs (x,y) such that ax+ by < c, and (x,y) such that ax + by>0, are called

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Linear Inequalities

Feasible regions

Half planes

Boundary

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Z is the set of integers (Z.*) is a group with a * b = a +b +1, a,b ∈ G.then inverse of a is

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-a

a +1

-1-a

None of these

A sequence whose reciprocal is an A.P is called

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Oscillator

H.P

G.P

None of these

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