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(Solved):   Abstract Algebra Please explain and show all steps. Let \( a \) and \( b \) be elements o ...



Let \( a \) and \( b \) be elements of an abelian group \( G \). Prove that for any positive integer \( n \), we have \( (a b

 

Abstract Algebra
Please explain and show all steps.

Let \( a \) and \( b \) be elements of an abelian group \( G \). Prove that for any positive integer \( n \), we have \( (a b)^{n}=a^{n} b^{n} \). Is this true for non-abelian groups? (If so, prove it; otherwise give one counterexample.) Remark: First prove this is true for any non-negative integer \( n \). Then, use properties of inverses to extend this for negative values of \( n \).


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