Mathematics
Senior High
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この式の解き方お願いします
3.2.1.6+1
Pn+1 (n+1)n(n-1)・5"-2
よって
kn
3.2.1.6+1
3.2.1.6"
n(n-1)n-2).5-3
5(n+1)
=
6(n-2)
DC 5:7
BC-5
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