Question

Вариант 2 8 задание срочно

Answer 1

$f(x)=sqrt{x^2-x}+frac{1}{sqrt{(x-1)(x-2)(x-3)}}\\\OOF:; ; left{begin{array}{l}x^2-xgeq 0\(x-1)(x-2)(x-3)>0end{array}right; ; left{begin{array}{l}x(x-1)geq 0\(x-1)(x-2)(x-3)>0end{array}right\\\a); ; x(x-1)geq 0; ; ,; ; ; znaki:; ; +++[, 0, ]---[; 1; ]+++\\xin (-infty ,0; ]cup [; 1,+infty )\\b); ; (x-1)(x-2)(x-3)>0\\znaki:; ; ---(1)+++(2)---(3)+++\\xin (1,2)cup (3,+infty )$

$c); ; left{begin{array}{l}xin (-infty ,0; ]cup [; 1,+infty )\xin (1,2)cup (3,+infty )end{array}right; ; ; Rightarrow ; ; ; ; xin (1,2)cup (3,+infty )\\\Otvet:; ; xin (1,2)cup (3,+infty ); .$