find the cardinal number of each of the following set : A={natural numbers between 15 and 25 }
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Answer:
16,17,18,19,20,21,22,23 and 24
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✪ First know about natural numbers :-
★ Natural numbers are the part of the number system which includes all the positive number from 1 till infinity . It does not include zero . In simple language counting numbers are natural numbers only .
✰ So natural number between 15 and 25 are :-
16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 .
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✪ Now what is a set ?
★ A set is a collection of well - defined and distinct objects .
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✰ YOUR ANSWER
N = {16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24}
n(A) = 9 .
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