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若圆x2+y2=4与圆x2+y2+2ay-6=0(a>0)的公共弦的长为,则a=_____...
试题详情
若圆x
2+y
2=4与圆x
2+y
2+2ay-6=0(a>0)的公共弦的长为
,则a=________.
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