f(x)=(1/2)x4-2x3+3m,x为实数,若f(x)+9大于等于0恒成立,实数m取值范围?答案为m大于等于(3/2)(高中范围内)答案为m大于等于(3/2),x4指的是x的4次方x3指的是x的3次方
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![f(x)=(1/2)x4-2x3+3m,x为实数,若f(x)+9大于等于0恒成立,实数m取值范围?答案为m大于等于(3/2)(高中范围内)答案为m大于等于(3/2),x4指的是x的4次方x3指的是x的3次方](/uploads/image/z/3912784-16-4.jpg?t=f%28x%29%3D%EF%BC%881%2F2%EF%BC%89x4-2x3%2B3m%2Cx%E4%B8%BA%E5%AE%9E%E6%95%B0%2C%E8%8B%A5f%28x%29%2B9%E5%A4%A7%E4%BA%8E%E7%AD%89%E4%BA%8E0%E6%81%92%E6%88%90%E7%AB%8B%2C%E5%AE%9E%E6%95%B0m%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%3F%E7%AD%94%E6%A1%88%E4%B8%BAm%E5%A4%A7%E4%BA%8E%E7%AD%89%E4%BA%8E%EF%BC%883%2F2%EF%BC%89%EF%BC%88%E9%AB%98%E4%B8%AD%E8%8C%83%E5%9B%B4%E5%86%85%EF%BC%89%E7%AD%94%E6%A1%88%E4%B8%BAm%E5%A4%A7%E4%BA%8E%E7%AD%89%E4%BA%8E%EF%BC%883%2F2%EF%BC%89%2Cx4%E6%8C%87%E7%9A%84%E6%98%AFx%E7%9A%844%E6%AC%A1%E6%96%B9x3%E6%8C%87%E7%9A%84%E6%98%AFx%E7%9A%843%E6%AC%A1%E6%96%B9)
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