设函数f(x)具有任意阶导数,且f✀(x)=[f(x)]^2,则当n为大于2的正整数时,f(x)的n阶导数f(n)(x)是

2025-06-26 15:09:15
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回答1:

17:B //dx/(xlnx)=lnx*dlnx=d(1/2ln(x)^2+C)
18:D //f(x)=-1/(x+C)=1/(C-x)