considerando A(1,1) b(0,-3) e c(2,5).
determine a equaçao geral , reduzida e segmentária da reta r que passa por A B e C.
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Resolução:
![\left[\begin{array}{ccc}x&y&1\\1&1&1\\2&5&1\end{array}\right] =0 \left[\begin{array}{ccc}x&y&1\\1&1&1\\2&5&1\end{array}\right] =0](https://tex.z-dn.net/?f=++%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Dx%26amp%3By%26amp%3B1%5C%5C1%26amp%3B1%26amp%3B1%5C%5C2%26amp%3B5%26amp%3B1%5Cend%7Barray%7D%5Cright%5D++%3D0)








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