(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H
(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H
(0 )2 1436587@9BAC9EDGF4HI 7P5QHRFTSVU0DXW6F4H
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80 CAPÍTULO 7. £¡ §© ¢¦£ ¤ ¢¥ § ¡<br />
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G = {(0, y) | y ∈ IR}<br />
Rm = (x, y) ∈ IR 2 | y = mx , m ∈ IR<br />
¢ IR 2 <br />
£¢ <br />
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2<br />
M = (x, y) ∈ IR | x = y<br />
Rm,b = (x, y) ∈ IR 2 | y = mx + b , m ∈ IR, b ∈ IR \ {0}<br />
¢ ¢ 2<br />
IR<br />
¨¥ ¨ G<br />
¡ IR 2<br />
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(0, y1) + (0, y2) = (0, y1 + y2) = (0, y2 + y1) = (0, y2) + (0, y2)<br />
<br />
<br />
(0, y1) + ((0, y2) + (0, y3)) = (0, y1) + (0, y2 + y3) = (0, y1 + (y2 + y3))<br />
= (0, (y1 + y2) + y3) = (0, y1 + y2) + (0, y3)<br />
= (0, y1) + (0, y2) + (0, y3)<br />
<br />
(0, y) + (0, 0) = (0, y + 0) = (0, y) =⇒ 0) <br />
(0,<br />
<br />
(0, y) + (0, −y) = (0, y − y) = (0, 0) =⇒ (0, −y) = y) <br />
−(0,<br />
(0, y)<br />
(G, +) ¡ ¢ ¢ ¥¤