Question 1

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Estudia la posició relativa dels tres plans
open curly brackets table row cell straight pi colon end cell cell begin straight style x plus y plus 1 end style equals 0 end cell row cell straight pi apostrophe colon end cell cell begin straight style 4 times x plus 4 times y minus 5 times z minus 2 end style equals 0 end cell row cell straight pi apostrophe apostrophe colon end cell cell begin straight style 16 times x plus 16 times y minus 20 times z minus 17 end style equals 0 end cell end table close
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