Question

Помогите решить
25 баллов

Answer 1

$f(x)= sqrt{ frac{25-x^2}{x+7}} \\OOF:; ; left { {{frac{25-x^2}{x+7} geq 0 } atop {x+7ne 0}} right. ; ; left { {{ frac{(5-x)(5+x)}{x+7} geq 0} atop {xne -7}} right. ; ; left { {{frac{(x-5)(x+5)}{x+7} leq 0} atop {xne -7}} right. \\---(-7)+++[-5, ]---[, 5, ]+++\\xin (-infty ,-7)cup [-5,5, ]$