高中数学代数与函数一其他练习题95
题目内容

已知D是不等式组http://picflow.koolearn.com/upload/papers/g02/20110523/201105231458356941369.gif所确定的平面区域,则圆x2+y2=4在区域D内的弧长为

2021-07-16

A.http://picflow.koolearn.com/upload/papers/g02/20110523/20110523145835709939.gif

B.http://picflow.koolearn.com/upload/papers/g02/20110523/20110523145835725944.gif

C.http://picflow.koolearn.com/upload/papers/g02/20110523/20110523145835756988.gif

D.http://picflow.koolearn.com/upload/papers/g02/20110523/20110523145835787991.gif

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