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Let the sequence be 1×2, 3×2^2, 5×2^3, 7×2^4, 9×2^5……… then this sequence is _________(a) An arithmetic sequence(b) A geometic progression(c) Arithmetico-geometric progression(d) None of the mentionedI have been asked this question in an interview for job.My enquiry is from Special Sequences in division Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

Answer» CORRECT answer is (c) Arithmetico-geometric progression

To EXPLAIN: If a1, a2……… are in AP and b1, b2………. are in GP then A2B2, a2b2,……… are in AGP.


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