In an arithmetic series having the first term 3, and common difference not equal to zero, the 2nd and the 7th, and 22nd terms are the first three terms in a geometric sequence.



Ihsan Kayili He has been tutoring mathematics, statistics and physics for more than ten years. He also worked in various private schools teaching math and physics. Previously, he worked as a professional engineer, project manager, part-time lecturer at university and computer programmer. His education: Civil engineer (B.Sc.), from Technical University, Istanbul, Turkey Postgraduate studies in the Netherlands, Italy and Japan, master of engineering in hydraulics Computer Programmer/Analyst diploma from the Centennial College, Toronto Computer Specialist diploma from a private school in Pickering

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