A.B. C.D.A) X = 3 SIN(4ΠT + ) (CM)B) X = 3SIN(4ΠT + ) (CM)C) 3...

Câu 14

A.

B. C.

D.

A) x = 3 sin(4πt + ) (cm)

B) x = 3sin(4πt + ) (cm)

C) 3sin(4πt + ) (cm)

D) 3sin(4πt - ) (cm)

Đáp án C