共50条信息
若过点\(P(1,\sqrt{3})\)作圆\(O\):\(x^{2}+y^{2}=1\)的两条切线,切点分别为\(A\)、\(B\)两点,则\(|AB|=\)________.
已知从圆\(C:(x+1)^{2}+(y-2)^{2}=2\)外一点\(P(x_{1},y_{1})\)向该圆引一条切线,切点为\(M\),\(O\)为坐标原点,且有\(\left| {PM} \right|=\left| {PO} \right|\),则当\(\left| {PM} \right|\)取得最小值时点\(P\)的坐标为____\(.\)
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