English Version: ) a' T2 \; W4 A# V公仔箱論壇if X = 0 , Y = i , i= √(-1) 3 m' V. Z7 s6 n- T Y4 R √ means squareroot," \8 X9 A1 b% k* I3 d: C1 b
which of the following statement is true, 2 s4 l2 l% \( M) h va)X>Y 8 z' Y2 }9 r' L7 c" r, Stvb now,tvbnow,bttvbb)X=Ytvb now,tvbnow,bttvb* b0 E6 I T: \& @0 ?/ M
c)X<Y : M2 G9 W* _* \# z' Y" fd)X=∈ : a! i3 d% x# w9 ^6 Z0 C; P, ye)None of the above * e# |+ O' i6 A; ?+ {Explain Why you choose that answer公仔箱論壇. w3 W* U" q; |/ L
Please supported with at least one explanation.公仔箱論壇) h, h1 G0 W( z# C2 h7 w2 t4 K, P
0 @1 F' e& G3 E) itvb now,tvbnow,bttvb 4 M. J# h& J6 C/ s + r2 J& v8 K' Z- _tvb now,tvbnow,bttvb中文版:! Y5 c" ]+ j |9 R* ?) U' Q
如果X = 0 ,為Y =我,我= √ ( -1 ) b7 h7 H' n) c2 o$ m! f: \2 c4 ]. Jtvb now,tvbnow,bttvb√定義平方根,公仔箱論壇) V) u2 U$ z m/ ~5 ]
下列哪項敘述是正確的,5.39.217.76- ^: ~# T+ o" a
1 ) × < Y - e* z7 h- |1 K3 W' Z" [$ r$ ~0 ab ) × = Y : [5 b$ [! M, S& `( b- RTVBNOW 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。ç ) × > Y 2 i7 p6 D! I# u# @8 s# r, }5.39.217.76深) x = ∈ ! {4 M+ H4 ~' U+ k L. }, H8 d五)以上皆非3 Z6 w o2 f& x, C
解釋為什麼你選擇的答案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。) ]- n# \* w; S. a% G+ H
請支持至少有一個解釋。tvb now,tvbnow,bttvb( g) y* U4 f) Q6 g$ \/ h0 H4 f
0 表示实部和虚部都为0 G8 d3 o0 s* S2 ~: C( D& R- G" hi 表示实部为0,虚部为i公仔箱論壇( ~9 I7 H7 p m3 S! s t: y
所以x<y o: B& ~1 V! Z; N- S8 L& Q, ^. D6 t1 N& R, B- T( X
若0只代表实数,i是虚数 + E6 @6 `! h B& Q0 [1 l两者不具备可比性作者: samtsirhc 時間: 2009-2-16 02:36 PM
good answer + i; U, i8 a9 E4 S& _6 Utvb now,tvbnow,bttvbi 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. / s n B" _/ z0 hSo if want to compare these two numbers, it should compare there magnitude.公仔箱論壇# D* B4 Y! j* _ C
1. x -> 0+0i , k# `+ \& Q- }+ B; Ftvb now,tvbnow,bttvb2. y -> 0+1i + n1 O) |3 n8 D" `5.39.217.76 $ }/ V) u7 M' E8 \+ MMagnitude of x is |√(0^2 +0^2)| = 0 . S. m* X# x" i* w6 F. zMagnitude of y is |√(0^2+1^2)| = 1 5 G* \3 c5 I! W" A4 H / ], q* b; `+ D! _( c$ j% `2 iSo, the magnitude of y >x作者: rubykwok 時間: 2013-1-6 06:50 PM