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英语翻译farmer john is inside of an ellipsewith refelction sides

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英语翻译
farmer john is inside of an ellipsewith refelction sides,given by the equation X^/a^+Y^/b^=1,with a>b>0 he is standing at the point (3,0),and he shines a laser pointer in the y-direction.the light reflectsoff the ellipse and proceeds directly toward farmer BROWN,traveling a distanse of 10before reaching him.farmer JOHN then spins around a circle;wherever he points the laser,the light reflects off the wall ang hits FARMER BROWN .what is the order pair (a,b)
农夫约翰在一个椭圆映射内由方程给出双方中,X^/a^+Y^/b^=1,(a>b>0) 他正站在点(3,0),他眼前一亮的激光指针在y方向.光反映了椭圆和收益直接向一个叫布朗的农民,在到达他之前这束光经过了10个单位长度 农民约翰然后转过身一圆;在何处,他点的激光,光反映过墙昂点击农夫布朗是什么顺序对(a,b).