Mathematics
Senior High
（2）を教えてください！お願いします🙇♀️
380 * 次の数列の初項から第n項までの和を求めよ。
1
1
1
1
(1)
(2)
1･3'24'3･5'46'
1-1, 2-2, 3-22, 4.2³,
380 (1)
(2)
381
n(3n+5)
4(n+1)(n+2)
(n-1)2" + 1
Answers
No answer yet
Were you able to resolve your confusion?
Users viewing this question
are also looking at these questions 😉
