Mathematics
Senior High
この写真の式はxでくくっていますが、
(x+1/2)^2+(y-1/2)^2=1/2である
中心(-1/2,1/2)半径1/√2の円を表せますか？
この問題でのxはマイナスもゼロもプラスもとります
2
x {( x + 12 ) ² + ( x − ²1 ) ² - 1 / } < 0.
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