A. f'(x)=4πx
B. f'(x)=4π^2x
C. f'(x)=8π^2x
D. f'(x)=16πx
求下列函数的导数:f( x )=({x)^2}+2x+1f( x )=xln xf( x )=(sin x)/(({x)^2)+2x+1}f( x )=({e)
设函数f(x)和 g (x)可导,且 ^2(x)+(g)^2(x)neq 0, 试求函数 =sqrt ({f)^2(x)+(g)^2(x)} 的-|||-导数.
设函数f(x)具有任意阶导数,且f’(x)=[f(x)]2,则f(n)(x)= ( )A. n[f(x)]n+1B. n![f(x)]n+1C. (
设函数f(x)具有任意阶导数,且fˊ(x)=[f(x)]2,则f(n)(x)= ( )A. n[f(x)]n+1B. n![f(x)]n+1C. (
设函数f(x)和g(x)可导,且f2(x)+g2(x)≠0试求函数y=sqrt(f^2(x)+g^2(x))的导数.设函数f(x)和g(x)可导,且f2(x)+
函数 f(x) = e^-2x+1 + e^x + e^2 当 x = (1)/(2) 时导数为()A. $\sqrt{e} - 2$B. $\sqrt{e}
已知函数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( )已知函数$$f(x)$$具有
函数f(x)=(x^2+9)(x-(3)/(x)),当x=3时,导数为( )A. -2B. -16C. 21D. 36
函数f(x)=e^x的导数是()单选题(共25题,50.0分) 12.(2.0分)函数$f(x)=e^{x}$的导数是() A. $\ln(x)$ B. $
3.设f(x)存在,求下列函数的二阶导数 dfrac ({d)^2y}(d{x)^2} =-|||-(1) =f((x)^2) :-|||-(2) =ln [