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求导法则及常用导数公式




导数的求导法则


(Cu)=Cu(Cu)'=Cu'


(u±v)=u±v(u \pm v)'=u' \pm v'


(uv)=uv+uv(uv)'=u'v+uv'


(uvw)=uvw(uvw)'=u'vw +uvw+uvw+uv'w+uvw'


(uv)=uvuvv2\Big ( \dfrac{u}{v} \Big )'= \dfrac{u'v-uv'}{v^2}



常用导数公式


(C)=0(C)'=0


(xn)=nxn1(x^n)'=nx^{n-1}


(ax)=axlna(a^x)=a^x \ln a  (a>0,a1) (a>0, a \ne 1)


(lnx)=1x(\ln x)' =\dfrac{1}{x}


(logax)=1xlna(\log_a x)' =\dfrac{1}{x \ln a}


(ex)=ex(\mathrm{e}^x)'=\mathrm{e}^x


(sinx)=cosx(\sin x)'=\cos x


(cosx)==sinx(\cos x)'= =\sin x 


(shx)=chx(\sh x)' =\ch x


(chx)=shx(ch x)'=\sh x


(shx=exex2\sh x =\dfrac{\mathrm{e}^x-\mathrm{e}^{-x}}{2} , chx=ex+ex2\ch x=\dfrac{\mathrm{e}^x + \mathrm{e}^{-x}}{2} )






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