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 =?
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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-
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12/01/2011 postreply
10:02:41
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謝謝!麵積比s / S =( x - sinx)/(2pi - x + sinx),與圓半徑 r 無關。
-皆兄弟也-
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12/01/2011 postreply
22:32:17
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題解。
-皆兄弟也-
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12/03/2011 postreply
11:25:56
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