Question

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全部意味わからなすぎるので教えて頂きたいです😭😭

(1)* (5k+4)
い
k=1
れ
宮4
5284
=
5
↓
@kin
C
Q = hc
In (helle Aus
In (a)
(11):4)
5
4
+
13
+++
(2) 6k
(f(()))
↓
をくくる。
In (50+(3)
(3) 2 (k²-4k)
k=1
n
f = 1
121
8+1
6) k= 6- — (n-1) { (n-1) uf
()の中は分数入れない.
= (71) (2441)-9. Jn (me)
=
21
=
6
n
(7)(2441)-In (41)
//ncnt){(n+1)-12}
6 ~(n+1)(tu-11)
n
12
1
3m(n-1)
(4)* (k+1)(k+3)
k=1n
n
(k++4k+
n
n
= L k² + q E k + L 3
21
k=1
こ
++++
ん
10
[ n ( n + 1 ) ( Layl) eq. 1 h (htc) 13 n
= 8 (Lute 3u+1) + £n (n+1)+34
= f nof (Late (5ue 31)
p.24 111
8
(5)* (k²-2)
k=18
= 5
f=1
8
$=1
1.8(8+112-8+1)-8-2
=188
(6) 2k+4-3k²)
7
A=
+84-3
2
= 2 · 7 ( 2 + 1 ) + 7 4 - 3 of 7 (20 (2.90
=-336