sai2236534

真是超級簡單

maninfat

e)None of the above

rubykwok

As x is a pure real number, but y only with imaginary part.TVBNOW 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。8 K: |/ U: K- p
So if want to compare these two numbers, it should compare there magnitude.
9 l4 p2 C2 P/ d9 I公仔箱論壇1. x -> 0+0i公仔箱論壇$ P6 Y. }# M4 V! |3 C. l+ U0 ?
2. y -> 0+1i  j# R$ a- S( t+ A8 ]" Y4 e( S

3 }; A" p) G  [/ O+ yMagnitude of x is |√(0^2 +0^2)| = 08 m! _1 J, K" @0 P& V$ q
Magnitude of y is |√(0^2+1^2)| = 1公仔箱論壇- x7 f: C$ x9 _5 M6 R. z1 O
TVBNOW 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。! t/ p. i- \! F
So, the magnitude of y >x

rubykwok

其實唔知啱唔啱，我都係估吓估吓咋