Question 1

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Calculeu la mínima distància entre les rectes fraction numerator x plus 2 over denominator negative 2 end fraction equals fraction numerator y plus 1 over denominator negative 2 end fraction equals fraction numerator z minus 2 over denominator 4 end fraction i left parenthesis x comma y comma z right parenthesis equals open parentheses negative 2 comma negative 2 comma 2 close parentheses plus k times open square brackets 2 comma negative 4 comma negative 4 close square brackets

(escriviu el valor exacte)
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