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Treure valor absolut


Com que: begin mathsize 12px style open vertical bar bold a close vertical bar bold equals open curly brackets table row cell bold a bold space bold space bold space bold space bold space bold si bold space bold a bold greater than bold 0 end cell row cell bold minus bold a bold space bold space bold si bold space bold a bold less than bold 0 end cell end table close end style

quan traiem el valor absolut de l'equació |ax+by+c|=d, apareixen dues equacions (i 2 solucions possibles): 

  • ax+by+c = d

  • ax+by+c = -d
 
 
 
 
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