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真是超級簡單
e)None of the above
As x is a pure real number, but y only with imaginary part.
, N; u* r# N" j3 h$ g# s' M; i+ qSo if want to compare these two numbers, it should compare there magnitude.
2 D* V& L9 K: g& L1. x -> 0+0i
/ D' B' M& ]2 c) D7 F# e6 o2. y -> 0+1i5.39.217.77' G) \6 P- E1 U& {) E# M
5.39.217.77& C* z9 z4 l: V# ]4 [% q, U
Magnitude of x is |√(0^2 +0^2)| = 0tvb now,tvbnow,bttvb9 b& ]9 b' j/ n5 E! H
Magnitude of y is |√(0^2+1^2)| = 1
3 B- B" M9 M) [1 v5 {8 f1 C2 v& Q$ P
( S- @& e9 [5 ]5 |tvb now,tvbnow,bttvbSo, the magnitude of y >x
其實唔知啱唔啱,我都係估吓估吓咋
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