Question

512 номер,срочно 28баллов!

Answer 1

а) $y=sqrt{x^2-5x+6} \x^2-5x+6geq 0\(x-2)(x-3)geq 0$

x∈(-∞;2]∪[3;+∞)

б) $y=sqrt{9-x^2} \9-x^2geq 0\x^2-9leq 0\(x-3)(x+3)leq 0$

x∈[-3;3]