返回列表 回復 發帖
真是超級簡單
e)None of the above
As x is a pure real number, but y only with imaginary part.tvb now,tvbnow,bttvb4 c) C3 }: J( D/ _# K. P
So if want to compare these two numbers, it should compare there magnitude.tvb now,tvbnow,bttvb% f, O4 C/ q0 f
1. x -> 0+0i5.39.217.77* o0 R# U& H; j* T* j
2. y -> 0+1i
0 Z' V5 v' y+ J6 J$ W. m4 l$ w公仔箱論壇# W; S( q  \2 v: z) {& |! r9 i5 a
Magnitude of x is |√(0^2 +0^2)| = 0公仔箱論壇  ]* [4 s7 E7 ^4 c, }
Magnitude of y is |√(0^2+1^2)| = 15.39.217.777 V/ _* Y, Q9 q2 ]1 @  S. R( {2 e

" N9 f+ \& z/ \  v+ C; zSo, the magnitude of y >x
其實唔知啱唔啱,我都係估吓估吓咋
返回列表