- #1
irony of truth
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I need some help
I got an expression involving series...
x - (2/6)x^3 - (20/120)x^5 - (1080/5040)x^7 - (140400/362880)x^9 - ...
I remove x from my summation expression.. but
Right now, I can express as a summation from n = 1 to infinity of
(??) x^(2n + 1) / (2n + 1)!
That is.. what is my pattern in this: 2, 20, 1080, 140400,... ?
I got an expression involving series...
x - (2/6)x^3 - (20/120)x^5 - (1080/5040)x^7 - (140400/362880)x^9 - ...
I remove x from my summation expression.. but
Right now, I can express as a summation from n = 1 to infinity of
(??) x^(2n + 1) / (2n + 1)!
That is.. what is my pattern in this: 2, 20, 1080, 140400,... ?