已知点P(a,b)与点Q(1,0)在直线2x-3y+1=0的两侧,则下列说法:①2a-3b+1>0.②a≠0时,b/a有最小值,无最大值.③存在M∈R﹢,使√﹙a²+b²﹚>M恒成立④当a>0且a≠1,b>0时,则b/(a-1)的取值范
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![已知点P(a,b)与点Q(1,0)在直线2x-3y+1=0的两侧,则下列说法:①2a-3b+1>0.②a≠0时,b/a有最小值,无最大值.③存在M∈R﹢,使√﹙a²+b²﹚>M恒成立④当a>0且a≠1,b>0时,则b/(a-1)的取值范](/uploads/image/z/14734215-63-5.jpg?t=%E5%B7%B2%E7%9F%A5%E7%82%B9P%EF%BC%88a%2Cb%EF%BC%89%E4%B8%8E%E7%82%B9Q%EF%BC%881%2C0%EF%BC%89%E5%9C%A8%E7%9B%B4%E7%BA%BF2x-3y%2B1%3D0%E7%9A%84%E4%B8%A4%E4%BE%A7%2C%E5%88%99%E4%B8%8B%E5%88%97%E8%AF%B4%E6%B3%95%EF%BC%9A%E2%91%A02a-3b%2B1%EF%BC%9E0.%E2%91%A1a%E2%89%A00%E6%97%B6%2Cb%2Fa%E6%9C%89%E6%9C%80%E5%B0%8F%E5%80%BC%2C%E6%97%A0%E6%9C%80%E5%A4%A7%E5%80%BC.%E2%91%A2%E5%AD%98%E5%9C%A8M%E2%88%88R%EF%B9%A2%2C%E4%BD%BF%E2%88%9A%EF%B9%99a%26%23178%3B%2Bb%26%23178%3B%EF%B9%9A%EF%BC%9EM%E6%81%92%E6%88%90%E7%AB%8B%E2%91%A3%E5%BD%93a%EF%BC%9E0%E4%B8%94a%E2%89%A01%2Cb%EF%BC%9E0%E6%97%B6%2C%E5%88%99b%2F%EF%BC%88a-1%EF%BC%89%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83)
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