1+3+6+10+....+n(n²+1)= 1/2i(i+1)=1/6n(n+1)(n+2)
Matematika
chalvinayosica1
Pertanyaan
1+3+6+10+....+n(n²+1)= 1/2i(i+1)=1/6n(n+1)(n+2)
1 Jawaban
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1. Jawaban riel7
Waduh!!!!?? Sorry Saya kurang mengerti