Question

Determinar el conjunto solucion par de √225 - y2 ≥ 0

Answer 1

$\sqrt{225-y^{2} } \geq 0$

$\sqrt{15 ^{2} -y ^{2} } \geq 0$

$\sqrt{(15+y)(15-y) } \geq 0$

$15+y \geq 0 ; 15-y \geq 0$

$-15 \leq y \leq 15$


Rpta: [-15,15]