Respostas

2013-11-23T00:19:55-02:00
r:4x+2y-2=0 

2y = -4x + 2
y = -2x + 1
y - -2

 (x/2)+y=0 
y = -x/2
y = -1/2

|-1/2 - (-2)| / 1+ (-1/2) . (-2)|
|-1/2 + 2 / 1+ 1|
|3/2 / 2|
|3/4| = 0,75

1 = 45°
0,75 = x

x = 33,75°


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