y=ln(4x3+5)求导
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y=ln[ln(lnx)]求导复合函数f(x)=lnxg(x)=ln[ln(x)]r(x)=ln{lnln(x)]}r'(x)=[1/lnln(x)]g'(x)=[1/lnln(x)][1/ln(x)]f'(x)=[1/lnln(x)][1
Y=ln(lnx)求导~
y=lntanx求导y'=1/tanx*(tanx)'=1/tanx*1/(cosx)^2=1/(sinxcosx)=2/sin2xy‘=1/tanx*(1/cosx)^2=1/(cosx*sinx)=2/sin2x
求导y=ln(-x)答:y=ln(-x)y'(x)=[1/(-x)]*(-1)=1/x所以:y=ln(-x)的导数为y'(x)=1/x
求导y=ln/sinx是y=lnx/sinx?y'=(sinx/x-cosxlnx)/sin^2x
求导y=lnlnln(x^2+1)复合层层求导先求最外层倒数,你自己试试
求导y=xlnyy=xlny两边同时对x求导得y'=lny+x/y*y'(1-x/y)y'=lnyy'=lny/(1-x/y)=ylny/(y-x)
一道求导:y=ln(5x+7)^5y'=(5x+7)^(-5)*[5(5x+7)^4]*5=25/(5x+7)
y=ln(3x+5)如何求导?y'=[ln(3x+5)]'=[1/(3x+5)]*(3x+5)'=3/(3x+5)
y=(sin5x)^lnx求导y'=(a^x)'=a^xlnxy'=(x^a)'=ax^(a-1)y=(sin5x)^(lnx)y'=[(sin5x)^lnx]·ln(lnx)·(1/x)+lnx(sin5x)^(lnx-1)·5cos5x
求导y=ln(x+(4+x^2)^1/2)(1+x*(4+x^2)^(-1/2))/(x+(4+x^2)^(1/2))
ln|5x-7y|求导这是二元函数,应该是求偏导数:记f(x,y)=ln|5x-7y|,则Df(x,y)/Dx=5/(5x-7y),Df(x,y)/Dy=-7/(5x-7y).
y=ln(2x^-1)求导y'=ln(2x^-1)'=(x/2)*2*(-1)/x^2=-1/xy=ln(2x^-1)=-lnx/2y'=-2/x*(1/2)=-1/x-1/x
y=ln(1+x^2)求导2x/(1+x^2)导数为2x/(1+x^2)=2x/1+x^2
y=ln^2x求导1/x
求导.y=xln^3xy=xln³x所以y'=x'*ln³x+x*(ln³x)'=1*ln³x+x*3ln²x*(lnx)'=ln³x+x*3ln²x*1/x=ln
y=e^[ln(lnx)]求导函数y=e^[ln(lnx)]y'=[e^[ln(lnx)]][ln(lnx)]'=[e^[ln(lnx)]][]1/lnx][lnx]'=e^[ln(lnx)]/xlnx
y=ln^2(1-x)求导Y=[LN(1-X)]^2?Y'=2LN|1-X|/(1-X)(-1)=-2LN|1-X|/(1-X)1/2(x-1)
y=sin(lnx)+ln(sinx)求导cos(lnx).1/x+1/sinx.(cosx)
y=ln(x+a)求导是什么?y'=1/(x+a)y'=1/(x+a)1/(x+a)