Question 1

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Estudia la posició relativa de les rectes:
r colon open curly brackets table row cell begin straight style 5 end style plus left parenthesis begin straight style negative 4 end style right parenthesis lambda end cell row cell begin straight style negative 4 end style plus left parenthesis begin straight style 6 end style right parenthesis lambda end cell row cell begin straight style 3 end style plus left parenthesis begin straight style negative 7 end style right parenthesis lambda end cell end table close space space space space space space s colon open curly brackets table row cell begin straight style negative 3 end style plus left parenthesis begin straight style 16 end style right parenthesis mu end cell row cell begin straight style 8 end style plus left parenthesis begin straight style negative 24 end style right parenthesis mu end cell row cell begin straight style negative 11 end style plus left parenthesis begin straight style 28 end style right parenthesis mu end cell end table close

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