Question

Adevarat sau fals :
1) 2 aparine lui (radical din 2; radical din 5)=?
2) [-4;1] \ [-4;1) ={1}

Answer 1

1)

$\sqrt2 < 2 < \sqrt5 \Big|^2 \\ \\(\sqrt2)^2 < 2^2 < (\sqrt5)^2 \\ \\2 < 4 < 5 \quad (A)$

2)

(A)