What does this equation represent
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What does this equation represent

[From: ] [author: ] [Date: 11-05-27] [Hit: ]
..not sure if this is what you were asking, however.......
1 + X^2 +X^4 + X^6 + X^8 +...= (1-X^2)^-1

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it's a summation starting at 0 and going on to infinity:

x^2n

using this and plugging in values for n, starting at zero, you get the series from your question.

x^2(0) + x^2(1) + x^2(2) + x^2(3) + x^2(4)...
1 + x^2 + x^4 + x^6 + x^8

not sure if this is what you were asking, however.

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