Question

Find the cardinal number of the set {2 power x/x∈n,x≤4}

Answer 1

Answer:

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Answer 2

Answer:

Given:- set={2^x ,x belongs to natural number and x is smaller or equal to 4}

since when x=1,2,3 and 4

2^x= 2^1=2

2^x=2^2=4

2^x=2^3=8

2^x=2^4=16

in roaster form

set= {2,4,8,16}

we know that cardinal number of the set is the total number of elements belongs to the set.

Hence, total number of element of the set= cardinal number of the set=4