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let 1+2+4+8+...... =s

s= 1+2(1+2+4+8+........)

s=1+2s

s=-1

but sum of infinite terms cannot be -1

so, what's the answer

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14y ago
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11y ago

1/2

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Q: What is 1 plus 2 plus 4 plus 8 plus .?
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