Arithmetic formula/ Explicit formula
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Arithmetic formula/ Explicit formula

[From: ] [author: ] [Date: 12-08-27] [Hit: ]
.. But I cant figure out this formula!-If A(1) = 2,......
How in the world do you find the explicit formula for 2, -4, 6, -8, 10?
It has to be an exponent because the numbers' charges are changing in a pattern.... But I can't figure out this formula!

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If A(1) = 2, then A(n) = (2*n)*(-1)^(n + 1) <<<
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keywords: Explicit,Arithmetic,formula,Arithmetic formula/ Explicit formula
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