Question: For any integer n , prove that 5 2 n + 1 + 2 2 n + 1 is divisible by 7 .

For any integer n, prove that 52n+1+22n+1 is divisible by 7.

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To prove that for any integer n 52n1 22n1 is divisible by 7 we can use the properties of modular ari... View full answer

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