A. 2
B. 1
C. $\frac{1}{2}$
D. $-\frac{1}{2}$
设 f(1)=1 ,则 =lim _(xarrow 0)dfrac (f(1+x)-f(1-2sin x))(x+2sin x)= .__
若F(x)=2x+sin x,且F(0)=1,则F(x)=()A. $x^2-\cos x$B. $x^2-\cos x+2$C. $x^2+\cos x$D.
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)
函数f(x)=x-2sin(x)/(2)cos(x)/(2),则f′((π)/(3))=( )A. 0B. $\frac{1}{2}$C. $\frac{\sq
函数f(x)=x-2sin(x)/(2)cos(x)/(2),则f′((π)/(4))=( )函数f(x)=x-2sin$\frac{x}{2}$cos$\f
设f(x)=arctan x,g(x)=sin (2x+pi )/(3),则g[f(-1)]= .设$f\left(x\right)=arc\ta
已知 f(x) 可导且 F(x)=int_(0)^x^2 f(t) , dt,则 F(x)= ________.例2. 设 p(x)=int_(1)^sin x
[单选题]已知f’(x)=sec2x+sin2x,且f(0)=3/2,则f(x)等于().A . B . C . D .
[问答题]已知f′(2+cosx)=sin2x+tan2x,则f(x)=------------.
[问答题]已知f′(2+cosx)=sin2x+tan2x,则f(x)=------------.