Question

1. Find all n e N such that 2" - 1 = 0 (mod 3) and the conguence 4.r+1 = 0 (mod 2-1)
has a solution. (Hint: Prove that n must be a power of 2 and if n is a power of 2 then
there exist a solution.
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Answer 1

Answer:

i dont onoqw about taht what to do