4950

Tick cho em nha

Biết ∫ a b f x d x = 10 , ∫ a b g x d x = 5 .  Tính  I = ∫ a b 3 f x - 5 g x d x .

A. I = -5

B. I = 15

C. I = 5

D. I = 10

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each or the following questions.

A. educate

B. engineer

C. acceptable

D. department