De oplossingenverzameling

van   2x2 − 1 = 0   is
A.   { 1 }
B.   { }
C.     { }
D.   { }
E.   { }
                 

[ 4-0719 - op net sinds 14.11.09-(E)-25.10.2023 ]

Translation in   E N G L I S H

The set of solutions of
  2x2 − 1 = 0   is
A.   { 1 }
B.   { }
C.     { }
D.   { }
E.   { }

Oplossing - Solution