Name: 過去無窮大的加法（警告：前面的數學）。 (Adding Past Infinity (WARNING: Math Ahead))
Uploaded: 2021-01-14T10:29:42.000Z
Duration: 48 s
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Suppose you add up one plus two plus four plus eight plus sixteen plus… well, you

Each number is twice as big as the previous one, so it's pretty obvious that this sum

We can multiply the whole thing by one and it'll be the same, right?

And one is the same as two minus one… so we have two plus four plus eight plus sixteen

etc., minus one minus two minus four minus eight minus sixteen…

So almost everything on the right side cancels, and voila: 1+2+4+8+16, and so on, is negative

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過去無窮大的加法（警告：前面的數學）。 (Adding Past Infinity (WARNING: Math Ahead))

obvious

negative

previous

suppose