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Use Mathematical Induction to Prove That for All Integers $n \geq 0,8 ^ { n } - 1 \text { is divisible by } 7 \text {. }$

Question 6

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Use mathematical induction to prove that for all integers $n \geq 0,8 ^ { n } - 1 \text { is divisible by } 7 \text {. }$

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