[DTube] Proof of the Sum-Difference Formulas - Part 2

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I'm in the process of uploading all of my Youtube videos to DTube, where they can be recorded on the Steem blockchain.

In this video, we use the results from the previous video to derive the formulas:

zz2.png

We purely use algebra by manipulating the following equations from the previous video to derive the above results.

zz1.png


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[DTube] Proof of the Sum-Difference Formulas - Part 2 | Ecency