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.
# p* y" D" v3 @# w7 Y! C" sSo if want to compare these two numbers, it should compare there magnitude.公仔箱論壇3 g  G8 R8 Q* j9 I3 Q/ r6 _
1. x -> 0+0i6 W6 F! c3 ?5 E. l7 D4 b
2. y -> 0+1i& C/ ?1 L- T* @+ |" S

* m% l4 T8 A/ L' Mtvb now,tvbnow,bttvbMagnitude of x is |√(0^2 +0^2)| = 0
! r$ \+ e; G2 c. _6 pMagnitude of y is |√(0^2+1^2)| = 1; e  q+ R' v1 `2 X. L0 O! B

" s: x( z9 A6 E, p! s公仔箱論壇So, the magnitude of y >x

rubykwok

其實唔知啱唔啱，我都係估吓估吓咋