Question

Найдите область определения функции
(смотреть вложение)

Answer 1

D(y):

$left { {{sqrt{frac{-7}{x^{2} +3x } }  geq 0} atop {x+1neq 0}} right.  left { {{frac{-7}{x^{2} +3x }   geq 0} atop {xneq -1}} right.  left { {{x^{2} +3x  < 0} atop {xneq -1}} right.  left { {{x(x+3)  < 0} atop {xneq -1}} right.  left { {{x [tex]D(y) = ( - infty;-3)U(0;+infty)$} atop {xneq -1}} right.[/tex]