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OpenStudy (anonymous):
Check, Please! 1) P( 12,3) = (12!)/(12-3)! 2) C (8,3) = 8!/(8-3)!*3! ?
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OpenStudy (anonymous):
correct
OpenStudy (anonymous):
nPr=n!/(n-r)!
OpenStudy (anonymous):
nCr=n!/(n-r)!r!
OpenStudy (anonymous):
You can use the pascals triangle to visualize combinations.It will give you a good concept
OpenStudy (anonymous):
medal plz
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