Mathematics
Senior High
Resolved
これはなんでですか
90 (1) (n+1)²+(n+2)² + ... + (2n) 2
2n
n
= Σk² - Σ k²
k=1
k=1
2)²+...+(
1803+
Answers
Were you able to resolve your confusion?
Users viewing this question
are also looking at these questions 😉
