English Version: ' _* z: @/ U6 n' S& s0 Nif X = 0 , Y = i , i= √(-1) 3 Y# g# q& t) F4 _5 w4 D# b √ means squareroot,公仔箱論壇+ M6 F1 u0 a) M1 Y8 H
which of the following statement is true, tvb now,tvbnow,bttvb9 W3 r0 O: V! u3 N; y6 f, h
a)X>Y ' e2 z4 }, C, r$ i" Dos.tvboxnow.comb)X=Y ) N+ u! F- y, E2 p* y) fc)X<Y8 u/ A. f$ e, y! {' K
d)X=∈os.tvboxnow.com1 Q9 ~4 P+ @) B5 ]9 Y) \2 X
e)None of the aboveos.tvboxnow.com# d' s+ C9 g0 u- s+ n" t h6 @, _
Explain Why you choose that answer - Q# H( C9 R# d. J2 jos.tvboxnow.comPlease supported with at least one explanation. ' Q8 \0 A' k: t5 Q7 n# V 2 F i8 T2 Q7 k0 C公仔箱論壇TVBNOW 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。, d$ b) I" S' J" P1 v
0 表示实部和虚部都为0TVBNOW 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。8 S; M/ y6 T5 X o0 ^- }5 o. [
i 表示实部为0,虚部为i8 J& D: T0 H" |& H: C
所以x<yos.tvboxnow.com, N0 L I7 @ q9 T& y
good answer # y t w5 l$ t/ Y: P. aTVBNOW 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。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.公仔箱論壇; R5 H5 `( T8 z# Z2 i
So if want to compare these two numbers, it should compare there magnitude.公仔箱論壇, e. N+ e6 m3 V0 z* G7 Z
1. x -> 0+0itvb now,tvbnow,bttvb$ `3 W3 z b( w8 k' o, [
2. y -> 0+1ios.tvboxnow.com1 i- s3 P) A7 N
9 q% q. e; m' ~
Magnitude of x is |√(0^2 +0^2)| = 0 $ {* p6 y' N& ]* u! v- JMagnitude of y is |√(0^2+1^2)| = 1: l0 |6 a, u( p0 i/ W
: O7 W! u W7 I( dSo, the magnitude of y >x作者: rubykwok 時間: 2013-1-6 06:50 PM