有关P54的精选大全

过P(5,4)作圆C:x2+y2-2x-2y-3=0的切线,切点分别为A、B,四边形PACB的面积是(  )A...
问题详情:过P(5,4)作圆C:x2+y2-2x-2y-3=0的切线,切点分别为A、B,四边形PACB的面积是()A.5                               B.10C.15                             ...
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