Choose the best answer for the following sentence:"Those eggs of different colors are very artistic.” “Yes, they __________ in Russia.”A. were painted B. were paint C. were painting D. painted
Hàm số h(x) = 1 - tan2x là đạo hàm của hàm số A. 2x - tanx. B. x - tanx. C. -2tanx(1 + tan2x). D. Các kết quả đã cho đều sai.
Với hàm số f(x)=xx+1 . Tập nghiệm của bất phương trình f'(x)>0 là:A. (-∞; 1) \ {-1; 0} B. (1; +∞) C. (-∞; -1) D. (-1; +∞)
Giá trị của đạo hàm của hàm số A. f'(1) = 1. B. f'(1) = . C. f'(1) = 0. D. f'(1) = 2.
A. -sinx. B. sinx. C. . D. .
A. f'(0) = 0 B. Không có. C. f'(0-) = 0; f'(0+) không có. D. f'(0+) = 0; f'(0-) không có.
Choose the best answer for the following sentence:She suffered a lot from ____________ after the death of her husband. A. depress B. depressingly C. depressed D. depression
Choose the best answer for the following sentence:He is not in town; he ____________ on a special mission. A. is sending B. will be sent C. has sent D. has been sent
Choose the best answer for the following sentence:The university ____________ by private funds as well as by tuition income and grants. A. is supported B. supports C. is supporting D. has supported
Choose the best answer for the following sentence:Having finished ______________________ the reading report, I began to listen to music. A. to write B. to have written C. writing D. written
Loga.vn - Cộng Đồng Luyện Thi Trực Tuyến