设函数f(x)=2/(3x+5)+lg(3-2x)/(3+2x)(1)求函数的定义域; (2)判断函数的单调性,并给出证明; (3)已知函数f(x)的反函数f-1(x),问函数y=f-1(x)的图像与x轴有交点么?若有,求出交点坐标;若无交
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![设函数f(x)=2/(3x+5)+lg(3-2x)/(3+2x)(1)求函数的定义域; (2)判断函数的单调性,并给出证明; (3)已知函数f(x)的反函数f-1(x),问函数y=f-1(x)的图像与x轴有交点么?若有,求出交点坐标;若无交](/uploads/image/z/1749379-67-9.jpg?t=%E8%AE%BE%E5%87%BD%E6%95%B0f%28x%29%3D2%2F%283x%2B5%29%2Blg%283-2x%29%2F%283%2B2x%29%EF%BC%881%EF%BC%89%E6%B1%82%E5%87%BD%E6%95%B0%E7%9A%84%E5%AE%9A%E4%B9%89%E5%9F%9F%EF%BC%9B+%EF%BC%882%EF%BC%89%E5%88%A4%E6%96%AD%E5%87%BD%E6%95%B0%E7%9A%84%E5%8D%95%E8%B0%83%E6%80%A7%2C%E5%B9%B6%E7%BB%99%E5%87%BA%E8%AF%81%E6%98%8E%EF%BC%9B+%EF%BC%883%EF%BC%89%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0f%EF%BC%88x%EF%BC%89%E7%9A%84%E5%8F%8D%E5%87%BD%E6%95%B0f-1%28x%29%2C%E9%97%AE%E5%87%BD%E6%95%B0y%3Df-1%28x%29%E7%9A%84%E5%9B%BE%E5%83%8F%E4%B8%8Ex%E8%BD%B4%E6%9C%89%E4%BA%A4%E7%82%B9%E4%B9%88%3F%E8%8B%A5%E6%9C%89%2C%E6%B1%82%E5%87%BA%E4%BA%A4%E7%82%B9%E5%9D%90%E6%A0%87%EF%BC%9B%E8%8B%A5%E6%97%A0%E4%BA%A4)
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