Question

ДАЮ МНОГО БАЛОВ РЕШИТЕ НОМЕР 2 И 3
ОТВЕТ ДАЙТЕ В ФОРМАТЕ ФОТОГРАФИИ.

Answer 1

$2); -2 leq 3-4x leq 5\\-2-3 leq -4x leq 5-3\\-5 leq -4x leq 2; |:(-4); znak; menyaem\\-frac{1}{2} leq x leq frac{5}{4}\\ili; left { {{-4x geq -5} atop {-4x leq 2}} right. ; left { {{x leq frac{5}{4}} atop {x geq -frac{1}{2}}} right. ; to ; -frac{1}{2} leq x leq frac{5}{4}$

$3); y=sqrt{1-x}+sqrt{frac{1}{3}x+3}\\ left { {{1-x geq 0} atop {frac{1}{3}x+3 geq 0}} right. ; left { {{x leq 1} atop {frac{1}{3}x geq -3}} right. ; left { {{x leq 1} atop {x geq -9}} right. ; to ; -9 leq x leq 1$