(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H
(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H
(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H
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S = ((1, 0, 1) , (0, 1, 1) , (2, −1, 1) , (0, 0, 1))<br />
§ ¢ IR 3 <br />
<br />
¡ ¢ (1, 2, 3) ¢ S<br />
<br />
<br />
¨¥ ¨ S = {(1, 0, 1), (0, 1, 1), (2, −1, 1), (0, 0, 1)}<br />
¡ <br />
§ ¢<br />
<br />
3 IR<br />
γ ω <br />
β<br />
(a, b, c) = α(1, 0, 1) + β(0, 1, 1) + γ(2, −1, 1) + ω(0, 0, 1)<br />
¡<br />
(a, b, c) ∈ IR 3¥¤ α<br />
(a, b, c) = (α, 0, α) + (0, β, β) + (2γ, −γ, γ) + (0, 0, ω)<br />
= (α + 2γ, β − 2γ, α + β + γ + ω)<br />
⇐⇒<br />
⇐⇒<br />
α + 2γ = a<br />
⎧<br />
⎪⎨<br />
⎪⎩<br />
β − 2γ = b<br />
α + β + γ + ω = c<br />
α = a − 2γ<br />
β = b + 2γ<br />
ω = c − α − β − γ = c − a − b − γ