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Clearnote
Q&A
Senior High
Mathematics
求解🙏
Mathematics
Senior High
9 monthsago
ˊ_>ˋ
求解🙏
[解] 範例3 扇形弧長與面積 坐標平面上,有一邊長為2的正六邊形 PABCDE 實心木板,其中兩項點 P(0,0)與A(2,0),將此木板放在xy平面上且沿x軸正向滾動,過 程中只看頂點P(x,y)移動的軌跡,當點P坐標為(12,0),求點P的 軌跡所在的曲線與x軸所圍成封閉區的面積為 E (此題須注意:角度須為弧度量) 全國模考考型題 D P A
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