English Version:www2.tvboxnow.com) z- j, f# S8 o. B" f
if X = 0 , Y = i , i= √(-1) # e- G/ D J `" A/ A( r% Y
√ means squareroot,) ~$ Z- O [6 T
which of the following statement is true, 0 T. C) u$ [( @" M# W; E* I5 ]. Y ]1 Ta)X>Y 7 c" O# z; n4 ?( _0 yTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。b)X=Y $ c- K6 n+ O7 z9 g! L4 ]) W# bc)X<Y / E/ v9 O* ~. I" X+ M" j0 `d)X=∈ 5 ~$ m2 g/ Z, p0 Te)None of the above2 M5 T( W+ X* y4 x- v8 O
Explain Why you choose that answer公仔箱論壇9 h2 a, n0 S! ~( v5 f
Please supported with at least one explanation.公仔箱論壇% g+ m0 |! z! F% R
4 {6 D' U, O+ ntvb now,tvbnow,bttvb公仔箱論壇* x- K! s- M' c# G
good answer1 i8 R( x7 O$ F* `
i love it作者: dr3jai 時間: 2009-2-17 01:32 PM
I think is X>Y作者: ongoky 時間: 2009-2-17 01:56 PM
The Answer is E, There is no answer for Square root of negative Number作者: alanma 時間: 2009-2-17 06:27 PM
作者: yinyinyin1234 時間: 2009-2-17 07:49 PM
see answer作者: 域琪 時間: 2009-2-20 12:31 AM
呵呵~我唔識呀作者: kangchuyi 時間: 2009-3-23 01:35 AM
thank作者: haha28 時間: 2009-5-5 09:18 PM
thanks作者: bb6633 時間: 2010-12-6 01:16 PM
Thanks for sharing作者: felix9981 時間: 2010-12-16 01:36 PM
呵呵~我唔識呀作者: bluekid2030 時間: 2012-12-28 12:44 PM
難題作者: sai2236534 時間: 2012-12-29 07:13 PM
真是超級簡單作者: maninfat 時間: 2013-1-1 10:27 AM
e)None of the above作者: rubykwok 時間: 2013-1-6 06:17 PM
As x is a pure real number, but y only with imaginary part.: e% a1 _3 x. b# ^0 j) I1 G
So if want to compare these two numbers, it should compare there magnitude. / Q4 s/ Y' C# _- ?& @" c1. x -> 0+0iwww2.tvboxnow.com* f( ^' B% J. o+ c" c" m! h
2. y -> 0+1i公仔箱論壇" L" D v+ o( s# o7 h% K5 w
, P: ?# i/ Y4 E; M* K% A公仔箱論壇Magnitude of x is |√(0^2 +0^2)| = 0) D1 | m) l, c& y p) |( {
Magnitude of y is |√(0^2+1^2)| = 1 4 C6 ?8 ]* v1 _: H" G/ ?! s3 ktvb now,tvbnow,bttvb k3 H+ ~+ m a# ~, y
So, the magnitude of y >x作者: rubykwok 時間: 2013-1-6 06:50 PM