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Question

Match the following:

Column AColumn B1. {x: x R, -5 < x 15 } A. 1 2.A=ThepowersetP(A)has––––elements B.8 3.UniversasetofRationalNumbers&IrrationalNumbersC.RealNumbers4.No.ofelementsinPowerSetofA={a,b,c} D.Integers E.(5,15] F.[5,15)


A

1 - b, 2 - a, 3 - c, 4 -e

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B

1 - b, 2 - c, 3 - a, 4 -e

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C

1 - e, 2 - a, 3 - c, 4 -b

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D

1 - e, 2 - a, 3 - b, 4 -c

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Solution

The correct option is C

1 - e, 2 - a, 3 - c, 4 -b


1. -5 < x ≤ 15 (-5, 15)

2. is a subset of A, so, P(A) = {}

There is 1 element in P(A)

3. Universal set of rational and irrational numbers is real numbers.

4. A = {a, b, c}

P(A) has 2n(A) elements

So, as n(A) = 3

No. of element in P(A) = 23 = 8


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