Question

A=
$- 1 \\ \frac{2}{3} \\ - 05 \\ ( - {2}^{7} ) \\ 7 \\ \frac{0}{7}$
Determinați:
A n N ,
A n Z ,
A n Q,
A/Q

Answer 1

A Π N={7;0,7}
A Π Z={-1;(-2)^7;7;0/7}
AΠ Q={2/3; -0,5; 0/7}
A/Q={-1;(-2)^7;7}