Question

find the number of subset A if A= (x:x=4n+1,2<n<5) n€ N​

Answer 1

A={X:x=4n+12≤n≤5}

⇒A={4(2)+1,4(3)+1,4(4)+1,4(5)+1}

⇒2{9,13,17,21}

no of subsets of A=24=16

Step-by-step explanation:

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