SOLUTION: List all elements of the set A ∩ B, where A = {n ∈ N | n = 2^n − 1} and B{n ∈ N

SOLUTION: List all elements of the set A ∩ B, where A = {n ∈ N | n = 2^n − 1} and B{n ∈ N | n = 2^n + 3}.

Question 1016952: List all elements of the set A ∩ B, where A = {n ∈ N | n = 2^n − 1} and B{n ∈ N | n = 2^n + 3}.
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
For any element to be in A ∩ B, there have to exist two natural numbers m and n such that

. This only happens when m = 3, n = 2, and the common element is 7. So A ∩ B = {7}.
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SOLUTION: List all elements of the set A &#8745; B, where A = {n &#8712; N | n = 2^n &#8722; 1} and B{n &#8712; N | n = 2^n + 3}.

SOLUTION: List all elements of the set A ∩ B, where A = {n ∈ N | n = 2^n − 1} and B{n ∈ N | n = 2^n + 3}.