(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H
(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H
(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H
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x − 2 = y − 1 z = 0<br />
P = A + 〈 −→<br />
AB, −→<br />
AC〉 = (2, 1, 0) + 〈(1, 1, 0), (0, 1, 1)〉<br />
P A B C<br />
<br />
<br />
¢ P ¡<br />
(x, y, z) = (2, 1, 0) + λ(1, 1, 0) + µ(0, 1, 1), λ, µ ∈ IR<br />
AX = (x−2, y−1, z) −→<br />
¢ ¢ X = (x, y, z) P<br />
£¢ −−→<br />
<br />
−→<br />
AC ¢ <br />
<br />
AB<br />
(x, y, z) ∈ P ⇐⇒<br />
<br />
<br />
<br />
<br />
<br />
x − 2 y − 1 z<br />
1 1 0<br />
0 1 1<br />
£¢<br />
<br />
<br />
<br />
= 0<br />
<br />
⇐⇒ (x − 2) − (y − 1) + z = 0<br />
⇐⇒ x − y + z − 1 = 0<br />
157
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