Question

If a set A has 12 elements , find the number of ways of having subsets of A , having :
(i) 4 elements.
(ii) Atleast 3 elements.
(iii) Atmost 3 elements.

Answer 1

Answer:

(3) íժҽղԵíԵվ ɾҽӀɑԵíօղՏ

íղ ɑ ՏҽԵ օƒ ʍ ղմʍҍҽɾ օƒ ҽӀҽʍҽղԵՏ.

ԹɾҽԹɑɾҽ ɑ ʍɑԹ օƒ ɾօɑժ Տմɾɾօմղժíղց վօմɾ ՏϲհօօӀ մԹԵօ ɑ ժíՏԵɑղϲҽ օƒ ɑҍօմԵ 200 ʍҽԵɾҽ. (ՏմíԵɑҍӀҽ íղժҽ×)

Answer 2

Correct option is A)

Correct option is A)Since the number of subsets of a set are 2^n

n if the set contains n elements,

n if the set contains n elements,∴ Number of subsets =2^6

6 =64