試卷名稱:107年 - 107 國立中山大學_碩士班招生考試_電機系(甲、己組)、電波領域:工程數學甲#110523
年份:107年
科目:中山◆電機◆工程數學甲
7.Let z be a complex number. Which of the following statements is correct?
(A) Log(z1/z2) = Log(z1)+ Log(z2), where Log(z) is the principal value of the complex logarithm.
(B) cos(j) is not a real value.
(C)
, n=0,±1,±2,......
(D) z2+2z-ez=
,where exp(2)=ez.
(E) None of the above statements are correct.