Question 1

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Estudia la posició relativa de les rectes:
r: negative x plus y plus 10 equals 0 intersection negative 19 times x minus 21 times y plus 10 times z equals 0

s: negative x plus y plus 5 equals 0 intersection negative 47 times x plus 27 times y plus 5 times z equals 0

(Atenció! les respostes incorrectes resten)
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