Dar4letaliwmadwo Dar4letaliwmadwo

26-11-2016
Mathematics

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Write a possible explicit rule for the nth term of the sequence: 5, 10, 20, 40, 80, ...

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alsteva alsteva

29-11-2016

5, 10, 20, 40, 80, ...

[tex]5, 5\times2, 5\times4, 5\times8, 5\times16, ... \\ \\5\times 2^0, 5\times2^1, 5\times2^2, 5\times2^3, 5\times2^4, ... \\ \\a_n=5\times 2^{n-1},n\in N[/tex]

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