Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:/ T6 A# W& W3 Z6 ?' t
冇答案ga....# |4 @5 g$ Z" X6 }- ?& a
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2條equation solve 唔到3個unknown ga....

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agree
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, i. P0 _% S  P4 T0 B) |; s2 equations 2 unknows4 L: z$ w. \/ ~8 V/ e- b

: Y7 y( k# S+ T7 l7 xif 3 unknows there should be 3 equations 5 Z, h$ r+ ~1 h! n, V" [9 k

1 V- f, Y8 r: ?make it simple 5 H. P  |0 p" M( _. j. I

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a + b +c = 38 q! u# K$ a( o. z4 S3 X

8 d7 ^3 p' M. s7 pa+b = 22 G4 D: h- ?: M; C. L( e/ \! Q

% ~+ t2 q' t. M: nthen c is 1
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a = 2 - b
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  D# S* y1 d% @" f0 cso 0 = 0
  J2 _7 c, `' p6 F& O$ n- s0 T$ a