• PhoenixFire
I saw this a little while ago and wanted to figure out how to prove that it's invalid. $1+2+4+8+...+\infty= -1$ Proof is as follows: Knowing that $1 * x=x$ and that $2-1=1$ we can say that $(2-1)(1+2+4+8+...+\infty)= -1$expanding the brackets you get$2+4+8+16+...+\infty- 1 - 2-4-8-...-\infty= -1$ everything from 2 up cancels leaving $-1=-1$
Mathematics
• Stacey Warren - Expert brainly.com
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SOLVED
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