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.: s3 b% }* s' d! \2 ]. J
So if want to compare these two numbers, it should compare there magnitude.公仔箱論壇' G( n% n8 n" ^7 `3 w) u9 V6 A# Y4 J
1. x -> 0+0i
* {1 p9 g" v+ A; L6 m4 jTVBNOW 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。2. y -> 0+1i
* a- E, B! G  w8 Wtvb now,tvbnow,bttvb( a; F8 B3 m3 F' G
Magnitude of x is |√(0^2 +0^2)| = 0% n5 L! n3 r  g0 q. z
Magnitude of y is |√(0^2+1^2)| = 1% _+ M) W4 T+ j2 J) w$ O* d* J

+ J7 _8 M# X. ASo, the magnitude of y >x

rubykwok

其實唔知啱唔啱，我都係估吓估吓咋