問題詳情
3.如圖是下列哪個函數的圖形﹖ 
(A)y = 3sinx
(B)y = - 3sinx
(C)y = 3sin2x
(D)y = - 3sin2x﹒
參考答案
答案：B
難度：困難0.333333
統計：A(0),B(4),C(1),D(3),E(0)
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