求指导本题解题过程，谢谢您！2、若 int f(x)(e)^dfrac (1{x)}dx=(e)^dfrac (1{x)}+C, 则 int f(x)dx= ()-|||-

设 int dfrac (f(x))(x)dx=(e)^x+C ，则int dfrac (f(x))(x)dx=(e)^x+Cint dfrac (f(x))(

求指导本题解题过程，谢谢您！证明:当 gt 0 时, ((1+x))^dfrac (1{x)}lt (e)^1+dfrac (x{2)}求指导本题解题过程，谢谢

设 (x)=(e)^-x, 则 int dfrac (f(ln x))(x)dx= .(x)=(e)^-x, 则 int dfrac (f(ln x))(x)

(4)若 (int )_(0)^1f(x)dx=agt 0, 则 (int )_(0)^1dfrac (1)(sqrt {x)}f(sqrt (x))dx=()

( 单选题 ) int dfrac ({e)^x}(1+{e)^2x}dx=_________int dfrac ({e)^x}(1+{e)^2x}dx=int

求指导本题解题过程，谢谢您！17、设 =f((x)^2,dfrac (x)(y)), 其中f具有二阶连续偏导数,求 dfrac (partial z)(part

设(x)=dfrac (1)(1+{x)^2}+sqrt (1-{x)^2}(int )_(0)^1f(x)dx, 则 (int )_(0)^1f(x)dx=设

若int f(x)dx=e^-x+C，则f(x)=____.若$\int f(x)dx=e^{-x}+C$，则f(x)=____.

(1)下列等式中正确的是-|||-()-|||-(A) int f(x)dx=f(x) (B) int df(x)=f(x)-|||-(C) dfrac (d)

设f(x)为连续函数，则(int )_(0)^1f(dfrac (x)(2))dx等于( )．(int )_(0)^1f(dfrac (x)(2))dx设f(x