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真是超級簡單
e)None of the above
As x is a pure real number, but y only with imaginary part.tvb now,tvbnow,bttvb; {" p$ n) q; a. X. ?% |
So if want to compare these two numbers, it should compare there magnitude.
5 n: @+ G9 e& p5 E# K1. x -> 0+0i
. T( K7 H0 o) Y公仔箱論壇2. y -> 0+1i
9 \) z& k/ a" i
9 D6 K1 u# s5 l- s+ dMagnitude of x is |√(0^2 +0^2)| = 0
/ h! {5 ~3 w$ @) MTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。Magnitude of y is |√(0^2+1^2)| = 1
' ^/ h) f1 J$ |% W9 Y0 q; z# @tvb now,tvbnow,bttvb
: n$ r, {% ?, p" c4 h, uSo, the magnitude of y >x
其實唔知啱唔啱,我都係估吓估吓咋
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