Recent content by Math325

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    Proof by Induction: Sum of 2^n - 1 Explained Step by Step

    Homework Statement 1 + 2 + 2^2 + 2^3 + ...+2^(n-1) = 2^n - 1 Homework Equations Sum formula? 3. The Attempt at a Solution I know you are suppose to use the base case and prove its true for k +1, but I'm not sure what to do for similar bases. Can someone please solve it step by step? Thanks!