Mathematics
Senior High
(2)の解き方と答え教えて欲しいです！
8. 次の和Sを求めよ。 (各8点)
11
1
+
2.4 3.5 4.6
(1) S= +
+
303
+
12/12-41133-5+本
1
(n+1)(n+3)
(2) S=5.3+12.32 + 19.3°+..+(7n-2)・3
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