Mathematics
Senior High
Solved
k-1するから4乗になるんじゃないですか？？
k=1
(2) Σ
k=1
1k-1
=
1-(-1/
3
1-(-1/2)
I+E
3
50
61
81
Answers
Were you able to resolve your confusion?
Users viewing this question
are also looking at these questions 😉
Recommended
詳説【数学Ⅰ】第一章 数と式～整式・実数・不等式～
8992
117
数学ⅠA公式集
5738
20
詳説【数学Ⅰ】第三章 図形と計量（前半）～鋭角鈍角の三角比～
4580
11
詳説【数学Ａ】第３章 平面図形
3627
16