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+ C8 F0 B/ R/ A5.39.217.76So if want to compare these two numbers, it should compare there magnitude.
& T+ R" S, u/ Mtvb now,tvbnow,bttvb1. x -> 0+0i
. t( `4 l0 y5 S. Q9 D4 q: M" j' y5.39.217.762. y -> 0+1i5.39.217.768 o. q% P4 C+ q  y. ?" n2 }

3 h# J2 c' C9 B7 u% T2 d公仔箱論壇Magnitude of x is |√(0^2 +0^2)| = 0
: p* ?( |& {' _Magnitude of y is |√(0^2+1^2)| = 15.39.217.760 L  j; Y5 {+ x  h4 c

. f+ C6 C) s9 D) g) |; H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