NẾU ( ) D 33 XF X = X + E . C. F X ( ) = 3 X E2+ X. D. ( ) 4F X...

Câu 10: Nếu ( ) d

3

3

x

f x = x + e . C. f x ( ) = 3 x e

2

+

x

. D. ( )

4

f x = x + e .

A. f x ( ) = x e

2

+

x

. B. ( )

4

12

x

− = + = −x y z