Question

Найти область определения функции y=

Answer 1

$\left \{ {{x+1 \geq 0} \atop {x^2+2x-3 \geq 0}} \right. \; \; \left \{ {{x \geq -1} \atop {(x-1)(x+3) \geq 0}} \right. \; \; \left \{ {{x \in [-1,+\infty)} \atop {x\in (-\infty ,-3]U[1,+\infty)}} \right.\; \to \; x\in [1,+\infty)$