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OpenStudy (anonymous):
23!-22! is equal to what and how ??
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myininaya (myininaya):
\[23!-22!=23*22!-22!=22!(23-1)=22! *22\]
OpenStudy (anonymous):
Beat me to it ;p
myininaya (myininaya):
:)
OpenStudy (anonymous):
thanks for help :)
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