Mathematics
Senior High
2枚目に私が解いた写真です。
解答には1/5としか書かれていません。
この解き方であってますか?🥺
5 x+2y=1のとき、x2+y2 の最小値を求めよ.
a
(,7)
(3,
速
の
x+2g=1.
x=-2y+1
x² + y² = ( − 2 y + 1) ² y ² = y² = ¢yc (ay² = Gy² = 4y+1
G&_47*1 = 5(y-74) + ( = 5(4- ² ) ² =
最小値/
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