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Pls help, thnx!The first term of a G.P is 5 and the last term is 1280. If the sum of all terms is 2555, find the number of terms.?

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  • Pls help, thnx!The first term of a G.P is 5 and the last term is 1280. If the sum of all terms is 2555, find the number of terms.?


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