Mathematics
Senior High
Solved
一般項の問題ですが、どこが間違っているでしょうか?
初項は1です
1
2
いら
298aml=30n+4n
= 3 (10+34)
n-l
=3(1.1g/n)
/08/
a
= 3 (1 + 2 [n-1])
3
=3(1+/n(n-1)
=3(1+/-)
=3+21-2n
・2n-2n+3
b
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