Question

A={2,4,5,9,11,19}.

B={x|x=y-2, unde y€A}
C={x|x=y^2, unde y€A}
E={r|r este restul impartirii lui y la 5, unde y€A}

VA ROG AJUTATI-MĂ

Answer 1

B={0,2,3,7,9,17}  
  x=y-2, x=2-2=0, x=4-2=2, x=5-2=3, x=9-2=7, x=11-2=9, x=19-2=17
C={2²,4²,5²,9²,11²,19²}
C={4,16,25,81,121,361}
E={0, 4,1}