Question

VA ROG AJUTATIMA
Determinati elementele multimii D={X apartine lui Z | 14 supra X+5 apartine lui Z}

Answer 1

14/(x+5) € Z => (x+5)|14 => x+5€D14

=> x+5€{-14,-7,-2,-1,1,2,7,14} /-5

x€{-19,-12,-7,-6,-4,-3,2,9}

=> D={-19,-12,-7,-6,-4,-3,2,9}

Kawaiimath