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.公仔箱論壇( o/ b( m, N- ?: `9 k- d
So if want to compare these two numbers, it should compare there magnitude.
  ?; x; b& g* N! C& _tvb now,tvbnow,bttvb1. x -> 0+0i/ q$ C& U" L( i9 @! u
2. y -> 0+1i5.39.217.77:8898+ g6 ?( |7 G8 _- w  z8 N  y) B1 [

' b, C% T# w5 J$ B  C6 N% O' g公仔箱論壇Magnitude of x is |√(0^2 +0^2)| = 0
' M; t9 ]- }- j5 jtvb now,tvbnow,bttvbMagnitude of y is |√(0^2+1^2)| = 1- O6 E$ m4 S, S

0 Q" d1 P2 S/ C" L3 v5 fSo, the magnitude of y >x

rubykwok

其實唔知啱唔啱，我都係估吓估吓咋