1 ² + 2 ² + 3² + 4 ² + 5 ² + .............+ 9 ² =
Matematika
basyar3
Pertanyaan
1 ² + 2 ² + 3² + 4 ² + 5 ² + .............+ 9 ² =
2 Jawaban
-
1. Jawaban Anonyme
PoLa BiLangaN PerSegI
Sn = 1/6 n(n + 1)(2n + 1)
1² + 2² + 3² + ... + 9² = S9
n = 9
S9 = 1/6 . 9(9 + 1)(2.9 + 1)
S9 = 3/2 . 10 . 19
S9 = 285 -
2. Jawaban Nurul1234567890
1² + 2² + 3² + 4² + 5² + 6² + 7² + 8² + 9 ²
= 1 + 4 + 9 + 16 + 25 + 36 + 49 + 64 + 81
= 5 + 25 + 25 + 100 + 130
= 285
Semoga membantu^^ :v
#cmiiw