Question

din ce multime face parte fiecare nr.
$\frac{3}{2} ; - \frac{ \pi }{3} ; \frac{527}{ \pi } ; \sqrt{123} ; \frac{ \sqrt{256} }{2} ;$

Answer 1

3/2∈Q
-π/3∈ I
527/π ∈ I
√123∈ I
√256/2= 16/2=8 ∈ N