Mathematics
Junior High
Solved
なぜ(1+√5)(3-√5)をといているのに
-2+2√5に( )がつくのでしょうか?
でか 次の計算をしなさい
7
0
5
TOY5
り
ェノ7 ら
ン
(ノ
/2 2 の
me
1十5 )(3一
りす
2 1
Y 5 )
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