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OpenStudy (anonymous):
Use mathematical induction to prove the statement is true for all positive integers n. 10 + 30 + 60 + ... + 10n = 5n(n + 1)
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OpenStudy (anonymous):
@inkyvoyd
OpenStudy (inkyvoyd):
okay nevermind I lied.
OpenStudy (inkyvoyd):
I hate proofs.
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