- #1
PiRsq
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How can I solve these two problems?
P(n,3)=210 and P(5,r)=20
For the first one I got up to n(n-1)(n-2)=210 but I don't know how to solve a cubic equation...And the second one I have no clue. I'd appreciate some help, thanks
P(n,3)=210 and P(5,r)=20
For the first one I got up to n(n-1)(n-2)=210 but I don't know how to solve a cubic equation...And the second one I have no clue. I'd appreciate some help, thanks