Mathematics
Senior High
高一數學3-3圓方程式
請問這題該怎麼解？@@
12. 坐標平面上,在以O(0,0), 4(0,2),B(2,2),C(2,0)為頂點的正方形(含邊界)内,令R為滿足下述條
件的點 P(x,y)所成區域:與點P (x,y)的距離為x一之所有點所成圖形完全落在正方形QABC(含邊
界)內。則區域R的面積為
(化為最簡分數)
告
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