TÌM CÔNG THỨC SAI

Câu 19. Tìm công thức sai?







^B.

^b

^{ }

^c

^{ }

^b

^{ }

⁽

⁾







^{  }

A.

^b

^[

   

^.

^]

^b

 

^.

^b

^{( )}

f x dx



f x dx



f x dx

a

c

b

f x g x dx



f x dx g x dx

a

a

c

a

a

a







^D.

^b

^.

^{ }

^b

^{ }





C.

^b

^[

   

^]

^b

 

^b

^{( )}

f x



g x dx



f x dx



g x dx

k f x dx



k f x dx

a

a