已知集合A={xx的平方+4x+p+1=0,x属于R}且A交集于R(R上方有个+号)=空集,求实数p的取值范围(给出答案...已知集合A={xx的平方+4x+p+1=0,x属于R}且A交集于R(R上方有个+号)=空集,求实数p的取值范围
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![已知集合A={xx的平方+4x+p+1=0,x属于R}且A交集于R(R上方有个+号)=空集,求实数p的取值范围(给出答案...已知集合A={xx的平方+4x+p+1=0,x属于R}且A交集于R(R上方有个+号)=空集,求实数p的取值范围](/uploads/image/z/1727968-40-8.jpg?t=%E5%B7%B2%E7%9F%A5%E9%9B%86%E5%90%88A%3D%7Bxx%E7%9A%84%E5%B9%B3%E6%96%B9%2B4x%2Bp%2B1%3D0%2Cx%E5%B1%9E%E4%BA%8ER%7D%E4%B8%94A%E4%BA%A4%E9%9B%86%E4%BA%8ER%EF%BC%88R%E4%B8%8A%E6%96%B9%E6%9C%89%E4%B8%AA%2B%E5%8F%B7%EF%BC%89%3D%E7%A9%BA%E9%9B%86%2C%E6%B1%82%E5%AE%9E%E6%95%B0p%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%EF%BC%88%E7%BB%99%E5%87%BA%E7%AD%94%E6%A1%88...%E5%B7%B2%E7%9F%A5%E9%9B%86%E5%90%88A%3D%7Bxx%E7%9A%84%E5%B9%B3%E6%96%B9%2B4x%2Bp%2B1%3D0%2Cx%E5%B1%9E%E4%BA%8ER%7D%E4%B8%94A%E4%BA%A4%E9%9B%86%E4%BA%8ER%EF%BC%88R%E4%B8%8A%E6%96%B9%E6%9C%89%E4%B8%AA%2B%E5%8F%B7%EF%BC%89%3D%E7%A9%BA%E9%9B%86%2C%E6%B1%82%E5%AE%9E%E6%95%B0p%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4)
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