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(﹣2,0) (﹣4,0) (2,0) (4,0)
(0,-2) (2,0) (4,0) (0,-4)
(0,﹣2) (2,0) (4,0) (0,﹣4)
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(0,-2) (2,0) (4,0) (0,-4)
点坐标为(-3,-2),⊙A.的半径为1,P.为x轴上一动点,PQ切⊙A.于点Q.,则当PQ最小时,P.点的坐标为( ) A.(-4,0) (-2,0) (-3,0) (-4,0)或(-2,0) .
(-4,0) (2,3) (-1,0) (0,2)
)(0,-2); ( )(-2,0); ( )(0,2); ( )(4,0)
(0,-2) (2,0) (4,0) (0,-4)