Question

if A {1234} then the number is subsets of a A contain the elements 3 is​

Answer 1

Answer:

Given :

Subsets of A = { }, {1}, {2}, {3}, {4}, {1,2}, {1,3}, {1,4}, {2,3}, {2,4}, {3,4}, {1,2,3}, {1,2,4}, {1,3,4}, {2,3,4}, {1,2,3,4}

Number of subsets = 16

Number of subsets containing element 3 = 8

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