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过点P(-1,2)且与曲线y=3x-4x+2在点M(1,1)处的切线垂直的直线方程是________
过点
过点P(-1,2)且与曲线y=3-4+2在点M(1,1)处的切线平行的直线方程是__________.
过点P(-1,2)且与曲线y=3x2-4x+2在点M(1,1)处的切线平行的直线方程是________.