Mathematics
Senior High
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(2)を教えて欲しいです
練習
22
次の等比数列の初項から第n項までの和Snを求めよ。
54.80
2 2 2
(1) 1, 2, 2², 2³, ....
3'32'33
(3) 3, -6,12, -24,
(2) 2,
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