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OpenStudy (anonymous):
Indicate the formula for the following conditions. P(n,r)
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OpenStudy (anonymous):
n!/(n-r)!
OpenStudy (anonymous):
Can you explain that? I have no idea what that even is!
OpenStudy (anonymous):
watch that video. you will understand what we mean by permutations.
OpenStudy (anonymous):
so is n/(n-r) how I would write it?
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OpenStudy (anonymous):
what?
OpenStudy (anonymous):
The answer you gave me. It's supposed to have ! in it?
OpenStudy (anonymous):
yes. watch that video and you will understand what ! means
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