Azuma

Originally posted by cutec at 2008-1-18 08:26 AM:. u  {4 o; H7 n0 B. N* q' D2 Y
冇答案ga....& J1 n5 W. I3 Z; c
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2條equation solve 唔到3個unknown ga....

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agree 6 \- D$ |+ D& V( t  e3 ^, W
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2 equations 2 unknows2 o2 g6 ?5 N% q5 ~: b
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if 3 unknows there should be 3 equations 0 E) ?5 A) F* I9 ^( q1 {3 J
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make it simple , n4 A4 I9 U/ N  B( M7 z6 n) A9 Z4 B
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say
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7 ?% x6 C' H/ _7 T: D* _a + b +c = 3. f( j; q- `9 w. T7 {1 J

5 ]: S2 ^) _8 o, V' t4 R- L6 Ha+b = 2. e  X. j* a* J0 Z( G% l7 k( x

9 u: F  K, j1 ]/ E  cthen c is 1 & r' h- V1 I2 `0 B; ?/ a
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a = 2 - b + N# f& F' J0 \( `  {
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so 0 = 0 * `; O% }, p1 g% C0 o8 I* x, j7 l  T
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