圓O半徑為r,弦AB將圓O分為S和s兩弓形,⦟AOB = x,0 <= x <= pi。求:麵積比 s/S =?
圓O半徑為r,弦AB將圓O分為S和s兩弓形,⦟AOB = x,0 <= x <= pi。求:麵積比 s/S =?
• 回複:圓O半徑為r,弦AB將圓O分為S和s兩弓形,⦟AOB = x。求:麵積比s / S =? -wxcfan123- ♂ (89 bytes) () 12/01/2011 postreply 10:02:41
• 謝謝!麵積比s / S =( x - sinx)/(2pi - x + sinx),與圓半徑 r 無關。 -皆兄弟也- ♂ (0 bytes) () 12/01/2011 postreply 22:32:17
• 題解。 -皆兄弟也- ♂ (40032 bytes) () 12/03/2011 postreply 11:25:56
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