Question

Find the number of subsets of A if A = {x : x = 4n + 1, 2 ≤ n ≤ 5, n ∈ N}​

Answer 1

Answer:

A={9, 13, 17, 21 }

Step-by-step explanation:

x=4x2 + I=8

x=4x3 + I=13

x= 4x4 + I=17

x = 4x5 + I=21