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The-first-term-in-an-AP-is-the-3rd-term-in-A-GP-the-5th-term-is-30-for-the-AP-and-the-12th-term-of-the-GP-is-64-find-the-sum-to-infinity-




Question Number 36711 by Rio Mike last updated on 04/Jun/18
  The  first term in an AP is the   3rd term in A GP , the 5th term is  30 for the AP, and the 12th term  of the GP is 64,find the sum to  infinity.
$$\:\:{The}\:\:{first}\:{term}\:{in}\:{an}\:{AP}\:{is}\:{the}\: \\ $$$$\mathrm{3}{rd}\:{term}\:{in}\:{A}\:{GP}\:,\:{the}\:\mathrm{5}{th}\:{term}\:{is} \\ $$$$\mathrm{30}\:{for}\:{the}\:{AP},\:{and}\:{the}\:\mathrm{12}{th}\:{term} \\ $$$${of}\:{the}\:{GP}\:{is}\:\mathrm{64},{find}\:{the}\:{sum}\:{to} \\ $$$${infinity}. \\ $$

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