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.www2.tvboxnow.com4 _+ H8 o- L9 w: L3 `
So if want to compare these two numbers, it should compare there magnitude.
- x' A5 M+ ^* }6 _! O, _9 y+ s1. x -> 0+0i
6 z9 {+ W* R& M; j8 swww2.tvboxnow.com2. y -> 0+1iwww2.tvboxnow.com1 J. e, J( p" d* _

2 N# g( H. @4 O8 l' Ewww2.tvboxnow.comMagnitude of x is |√(0^2 +0^2)| = 0$ x" i' M+ d% ?0 x
Magnitude of y is |√(0^2+1^2)| = 1tvb now,tvbnow,bttvb; F: n2 G& f# i4 ~5 N

: f5 K, J6 d9 p1 hSo, the magnitude of y >x

rubykwok

其實唔知啱唔啱，我都係估吓估吓咋