设函数f(x)在[a,b]上可积,则
A.
B.
C.
D.
设函数f(x)在[a,b]上可积,则
A.
B.
C.
D.
()-|||-A) |(int )_(a)^bf(x)dx|geqslant (int )_(a)^b|f(x)|dx-|||-B |(int )_(a)^bf
A.若 (int )_(a)^bf(x)dx=0, () 则在[a,b]上 f(x)=0B.若 (int )_(a)^bf(x)dx=0, () 则在[a,b
4.判断题 int_(a)^bf(x)dx+int_(b)^af(x)dx=0 ( )A. 对B. 错
(int )_(a)^bf(2x)dx=_____._____.
( )2. (int )_(a)^bf(x)dx=f(xi )(b-a) ( )3.若f(x)+g(x)在[a,b]上可积,则f(x)与g(x)均在[a,b]上
设函数f(x)在区间[a,b]上连续,且int_(a)^bf(x)dx=0,同时f(x)≥0,那么下列哪项一定成立?A. f(x)≡0在[a,b]上B. f(x
int f(x), dx = xe^x + C,则 int f(2x), dx = ( )A. $2xe^{2x} + C$B. $2xe^x + C$C. $
若f(x)的一个原函数是F(x),则int f(3x-1)dx=()int f(3x-1)dx=()int f(3x-1)dx=()int f(3x-1)dx=
设(int )_(-1)^13f(x)dx=9 , (int )_(-1)^13f(x)dx=9 , (int )_(-1)^13f(x)dx=9, 则 (in
(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)