下列式子求导1.f(x)=x^3-3x^2+3x-22.g(x)=-3x^3+5x^2-4x+113.u(x)=-x^3+27x+74.h(x)=42-45x-3x^2+3x^35.f(x)=Lnx+x6.g(x)=x/(2+x^2)
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![下列式子求导1.f(x)=x^3-3x^2+3x-22.g(x)=-3x^3+5x^2-4x+113.u(x)=-x^3+27x+74.h(x)=42-45x-3x^2+3x^35.f(x)=Lnx+x6.g(x)=x/(2+x^2)](/uploads/image/z/8005154-50-4.jpg?t=%E4%B8%8B%E5%88%97%E5%BC%8F%E5%AD%90%E6%B1%82%E5%AF%BC1.f%28x%29%3Dx%5E3-3x%5E2%2B3x-22.g%28x%29%3D-3x%5E3%2B5x%5E2-4x%2B113.u%28x%29%3D-x%5E3%2B27x%2B74.h%28x%29%3D42-45x-3x%5E2%2B3x%5E35.f%28x%29%3DLnx%2Bx6.g%28x%29%3Dx%2F%282%2Bx%5E2%29)
下列式子求导1.f(x)=x^3-3x^2+3x-22.g(x)=-3x^3+5x^2-4x+113.u(x)=-x^3+27x+74.h(x)=42-45x-3x^2+3x^35.f(x)=Lnx+x6.g(x)=x/(2+x^2)
下列式子求导
1.f(x)=x^3-3x^2+3x-2
2.g(x)=-3x^3+5x^2-4x+11
3.u(x)=-x^3+27x+7
4.h(x)=42-45x-3x^2+3x^3
5.f(x)=Lnx+x
6.g(x)=x/(2+x^2)
下列式子求导1.f(x)=x^3-3x^2+3x-22.g(x)=-3x^3+5x^2-4x+113.u(x)=-x^3+27x+74.h(x)=42-45x-3x^2+3x^35.f(x)=Lnx+x6.g(x)=x/(2+x^2)
1.f(x)=x^3-3x^2+3x-2
f'(x)=3x^2-6x+3
2.g(x)=-3x^3+5x^2-4x+11
g'(x)=-9x^2+10x
3.u(x)=-x^3+27x+7
u'(x)=-3x^2+27
4.h(x)=42-45x-3x^2+3x^3
h'(x)=-45-6x+9x^2
5.f(x)=Lnx+x
f'(x)=1/x+1
6.g(x)=x/(2+x^2)
g'(x)=(2+2x-2x^2)/(2+2x)^2
=(2+2x-2x^2)/(4+8x+4x^2)
=(1+x-x^2)/(2+4x+2x^2)
等于(lny-y/x)/(lnx-x/y) 先两边取ln对数然后两边求微分合并同类项把带dx的与带dy的各放在等式两边,就出来了。标准的隐函数求导,你可以查阅一下
下列式子求导1.f(x)=x^3-3x^2+3x-22.g(x)=-3x^3+5x^2-4x+113.u(x)=-x^3+27x+74.h(x)=42-45x-3x^2+3x^35.f(x)=Lnx+x6.g(x)=x/(2+x^2)
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