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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.$ j: v7 G- J7 |0 @+ p
So if want to compare these two numbers, it should compare there magnitude.
( F& F6 X. w1 K' X% v5.39.217.77:88981. x -> 0+0i
' u. R8 ?" u/ `0 T2. y -> 0+1i4 W6 I( @: d0 K
5.39.217.77:8898, r; v  t: v5 r
Magnitude of x is |√(0^2 +0^2)| = 09 T" y& O% S% B" ?6 Y9 D0 P7 G3 E
Magnitude of y is |√(0^2+1^2)| = 1
; ?  o, _) D2 F  w% H5.39.217.77:8898公仔箱論壇; F, E3 s$ r  J8 D! f3 e  d
So, the magnitude of y >x
其實唔知啱唔啱,我都係估吓估吓咋
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