Given expression , prove by induction that the expression is divisible by for all positive integers .
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Practice IB Mathematics Analysis and Approaches (AA) Topic AHL 1.15—proof by Induction, Contradiction, Counterexamples with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for AHL 1.15—proof by Induction, Contradiction, Counterexamples and mirrors Paper 1, 2, 3 style where relevant.
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Given expression , prove by induction that the expression is divisible by for all positive integers .
Let .
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Define .
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Let be a non-zero complex number with . Write for some real .
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Consider , where .
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