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.
& m' B$ S( R+ H: Qos.tvboxnow.comSo if want to compare these two numbers, it should compare there magnitude.1 R  U. k1 I) E3 p4 y: q. Y& r
1. x -> 0+0i
% d6 M" C* o2 E6 Stvb now,tvbnow,bttvb2. y -> 0+1i; _% ^  O& z& p5 F+ [

  C1 Z4 m. V/ y( B. E) L0 ~tvb now,tvbnow,bttvbMagnitude of x is |√(0^2 +0^2)| = 0
+ p, f" y" b: \4 }; j' oMagnitude of y is |√(0^2+1^2)| = 13 P0 x7 D( y- O4 l3 F' l

0 F) U- [  [" H: Vtvb now,tvbnow,bttvbSo, the magnitude of y >x

rubykwok

其實唔知啱唔啱，我都係估吓估吓咋