Mathematics
Senior High
Resolved
矢印の部分どうやって展開したらこうなりますか?
1
1+
a-1
(ii)
(a+1Xa-1)+(a+1) a(a+1) a+1
1--
1
=
1 (a+1xa-1)-(a-1) a(a-1) a-1
a+1
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1カ所、符号訂正🙇