1+2+3+...... what is addition of these
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1+2+3+4+5+6+7+8+9=45
sanyam80:
i asked addition of infinite numbers
not 1 to 9
1 to .......=
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the answer is
n(n+1)/2
you can prove this by the Sn formula of AP
the sum upto infinite series is infinity
plz mark me the brainliest
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