Mathematics
Senior High
Solved
(3)が分かりません。教えて下さい。できるだけベストアンサーにします。
高1の数と式の問題です。!❢
1
1
練習 x = √2 +1'
2 +1' y=√2-1
練3
37
(1) x+y,xy
のとき,次の式の値を求めよ。
(2) x2+y2
(3) x²y+xy²
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