#NiTanSola (Pepe Y Teo) (Spanish Edition)

#NiTanSola (Pepe Y Teo) (Spanish Edition)

» » Akuntansi 2+7+12+17+·· ·+ (sn-3) = 5n²-1 /2​

Akuntansi 2+7+12+17+·· ·+ (sn-3) = 5n²-1 /2​

–
2+7+12+17+·· ·+ (sn-3) = 5n²-1 /2​

Jawaban:

sn=2n(2×2+(n−1)×5)=2n(4+5n−5)=2n(5n−1)=25n2−2n

[answer.2.content]
Post under :

Related Post