Mathematics
Senior High
(1)の問題で、波線を引いたところの項数はどのように求めるのですか?
□ 67 次の和Sを求めよ。
(1) S=1·1+2.5+3.5² +4.5³+ +n·5″-1
(2)
*(3)
4
1 + ²3²3 + 23²³² + 3 ³3 ²
3+
+
33
S=1+4x+7x²+10x³+...+(3n-2)x²-¹
S=1+
・+
n
3n-1
67 α11 S = (-1+2·5 * 3.5 * *4-5¹ ** high-i
-55=
f
1-5 + 2-572-13-15²³ +211 + (n-1)-5²-1 + 1-5)
-45 = 1²-1 * 1-5 + (-5² + 1-5²111 (-5-1-h-5h
* 1.5"-1
5h-1) ch.5"
= ( + ((5 +5² +5 hein
項数
h
Answers
No answer yet
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~
8991
117
詳説【数学Ⅰ】第二章 2次関数(後半)~最大・最小・不等式~
6130
25
数学ⅠA公式集
5737
20
詳説【数学Ⅰ】第二章 2次関数(前半)~関数とグラフ~
5156
18