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OpenStudy (rainbow_dash):
Is the statement 1+2+4+....+2^n-1 = (2^n)-1 true for all positive integers?
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OpenStudy (anonymous):
yes
OpenStudy (rainbow_dash):
thanks
OpenStudy (anonymous):
you welcome
OpenStudy (anonymous):
use mathematical induction to prove it ...
OpenStudy (rainbow_dash):
i did but i wasn't sure :3
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