Powerful Patterns 3: Summation with the Negative Powers of 10

This math trick references the 1st Super Summation trick! Here's the summation formula from that math trick again:

Let x = 1 & y = 10 this time. Also, we're going to multiply the variable n by consecutive integers! (That are greater than zero(0) of course)

The common ratio of each summation above is a negative power of 10. Each consecutive negative power of 10 adds another 9 to the denominator of the fraction!

Speaking of patterns, maybe you already seen some other numerical math patterns that other mathematicians already discovered & published! (Besides me or you; any open-minded person can be a great mathematician, like me!)

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© Derek Cumberbatch