求a的取值范围Φ⊂A⊂R,B={x=|ax²-4x+ax}A∩B=Φ,A∪B=A2 已知A={x|x+1/2-x>-½},B={x| |x+2|>3} C={x|x²-2mx+m²-1<0}①若A∩C=Φ,求m的取值范围②B∪C=R 求m的取值范围③
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![求a的取值范围Φ⊂A⊂R,B={x=|ax²-4x+ax}A∩B=Φ,A∪B=A2 已知A={x|x+1/2-x>-½},B={x| |x+2|>3} C={x|x²-2mx+m²-1<0}①若A∩C=Φ,求m的取值范围②B∪C=R 求m的取值范围③](/uploads/image/z/2745457-25-7.jpg?t=%E6%B1%82a%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%CE%A6%26%238834%3BA%26%238834%3BR%2CB%3D%EF%BD%9Bx%EF%BC%9D%7Cax%26sup2%3B-4x%EF%BC%8Bax%EF%BD%9DA%E2%88%A9B%3D%CE%A6%2CA%E2%88%AAB%3DA2+%E5%B7%B2%E7%9F%A5A%EF%BC%9D%EF%BD%9Bx%7Cx%2B1%2F2-x%EF%BC%9E%EF%BC%8D%26frac12%3B%EF%BD%9D%2CB%3D%EF%BD%9Bx%7C+%7Cx%2B2%7C%EF%BC%9E3%EF%BD%9D+C%3D%EF%BD%9Bx%7Cx%26sup2%3B-2mx%2Bm%26sup2%3B-1%EF%BC%9C0%EF%BD%9D%E2%91%A0%E8%8B%A5A%E2%88%A9C%3D%CE%A6%2C%E6%B1%82m%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%E2%91%A1B%E2%88%AAC%3DR+%E6%B1%82m%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%E2%91%A2)
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