见图我试着解了解.
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见图我试着解了解.
见图
我试着解了解.
见图我试着解了解.
First,it make no harm to the question if I assume R=1,so that the formula of the circle is x^2+y^2=1.
AB:x=x0,x0
看不清图来张清晰点的图或者打字吧
见图我试着解了解.
见图
我试着解了解.
见图我试着解了解.
First,it make no harm to the question if I assume R=1,so that the formula of the circle is x^2+y^2=1.
AB:x=x0,x0
看不清图来张清晰点的图或者打字吧