C2:(x-1)2+(y+2)2=54分22.解:(1)曲线曲线C1派点点在:轴上长半长是小时国为一5分(2)曲线C1:g+X=1与z轴的交点坐标为(-4,Q)和为m>0,所以点P的坐标为(4.0分然切线的斜率存在设为则切线的单为们创+3=,擦得①k2+1所以切线l的方程为y

短文改错Dad asked me to buy a china flowerpot online, but I did that. A few days later, I received a text messagetelling meA pick it up at a nearby store. I went to get it, but strangely, I heard a clearly noise inside it.toclearopened a parcel, only to find that the plate had been broken into two piece. I instantly contacted witthestore owner and sent a photo to him, where could prove the truth. Soon I got a reply say ,Im sorry, I willwhicsayingsend another one tomorrow. "I had to go home with the breaking plate. The next day, I received a new flower-brokerpot with a perfect plate and I unite the first plate with glue, I have two flowerpots now lunited

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