作业帮f(x)在[a,b]单增 1.f(x)导数在在(a,b)>=0 2.f(x)导数在在(a,b)内的任意区间(α,β)恒不等于0f(x)在[a,b]单增1.f(x)导数在在(a,b)>=02.f(x)导数在在(a,b)内的任意区间(α,β)恒不等于0以上2点为什么不能就说成f(x)
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![f(x)在[a,b]单增 1.f(x)导数在在(a,b)>=0 2.f(x)导数在在(a,b)内的任意区间(α,β)恒不等于0f(x)在[a,b]单增1.f(x)导数在在(a,b)>=02.f(x)导数在在(a,b)内的任意区间(α,β)恒不等于0以上2点为什么不能就说成f(x)](/uploads/image/z/7019538-42-8.jpg?t=f%28x%29%E5%9C%A8%5Ba%2Cb%5D%E5%8D%95%E5%A2%9E+1.f%28x%29%E5%AF%BC%E6%95%B0%E5%9C%A8%E5%9C%A8%28a%2Cb%29%3E%3D0+2.f%28x%29%E5%AF%BC%E6%95%B0%E5%9C%A8%E5%9C%A8%28a%2Cb%29%E5%86%85%E7%9A%84%E4%BB%BB%E6%84%8F%E5%8C%BA%E9%97%B4%28%CE%B1%2C%CE%B2%29%E6%81%92%E4%B8%8D%E7%AD%89%E4%BA%8E0f%28x%29%E5%9C%A8%5Ba%2Cb%5D%E5%8D%95%E5%A2%9E1.f%28x%29%E5%AF%BC%E6%95%B0%E5%9C%A8%E5%9C%A8%28a%2Cb%29%3E%3D02.f%28x%29%E5%AF%BC%E6%95%B0%E5%9C%A8%E5%9C%A8%28a%2Cb%29%E5%86%85%E7%9A%84%E4%BB%BB%E6%84%8F%E5%8C%BA%E9%97%B4%28%CE%B1%2C%CE%B2%29%E6%81%92%E4%B8%8D%E7%AD%89%E4%BA%8E0%E4%BB%A5%E4%B8%8A2%E7%82%B9%E4%B8%BA%E4%BB%80%E4%B9%88%E4%B8%8D%E8%83%BD%E5%B0%B1%E8%AF%B4%E6%88%90f%28x%29)
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f(x)在[a,b]单增 1.f(x)导数在在(a,b)>=0 2.f(x)导数在在(a,b)内的任意区间(α,β)恒不等于0f(x)在[a,b]单增1.f(x)导数在在(a,b)>=02.f(x)导数在在(a,b)内的任意区间(α,β)恒不等于0以上2点为什么不能就说成f(x)
f(x)在[a,b]单增 1.f(x)导数在在(a,b)>=0 2.f(x)导数在在(a,b)内的任意区间(α,β)恒不等于0
f(x)在[a,b]单增
1.f(x)导数在在(a,b)>=0
2.f(x)导数在在(a,b)内的任意区间(α,β)恒不等于0
以上2点为什么不能就说成f(x)的导数在(a,b)内>0呢
f(x)在[a,b]单增 1.f(x)导数在在(a,b)>=0 2.f(x)导数在在(a,b)内的任意区间(α,β)恒不等于0f(x)在[a,b]单增1.f(x)导数在在(a,b)>=02.f(x)导数在在(a,b)内的任意区间(α,β)恒不等于0以上2点为什么不能就说成f(x)
第2条有问题吧?由f(x)在[a,b]上单增,得不出f ‘(x)在(a,b)内的任意子区间(α,β)恒不等于0
如f(x)=x³,f(x)在[-1,1]上单调递增,但f '(0)=0
选A D。不能确定 1.在区间(a,b)内有f'(x)>0，不包含点a，只可以说明f(x)在(a,b)单增 2.f(a)>=0，没有说f(x)在【a，b】内连续
自杀