Question

Пооомогите пожалуйста что 353 второй пример
и 354 тоже 2 пример

Answer 1

$353.2); ; frac{sqrt{2x-1}-1}{x} textless 0; ; ; Rightarrow \\a); left { {{sqrt{2x-1}-1 textless 0; ,; 2x-1 geq 0} atop {x textgreater 0}} right. ; ; ili; ; b); left { {{sqrt{2x-1}-1 textgreater 0; ,; 2x-1 geq 0} atop {x textless 0}} right. \\ left { {{sqrt{2x-1} textless 1; ,; x geq frac{1}{2}} atop {x textgreater 0}} right. quad iliquad left { {{sqrt{2x-1} textgreater 1; ,; x geq frac{1}{2}} atop {x textless 0}} right. \\ left { {{2x-1 textless 1} atop {x geq frac{1}{2}}} right. qquad iliqquad left { {{2x-1 textgreater 1} atop {x textless 0; ,; xgeq frac{1}{2}}} right.$

$left { {{2x textless 2} atop {xgeq frac{1}{2}}} right. qquad iliqquad xin varnothing \\ left { {{x textless 1} atop {x geq frac{1}{2}}} right. ; ; Rightarrow ; ; ; frac{1}{2} leq x textless 1\\Otvet:; ; xin [, frac{1}{2},1); .$

$354.2); ; frac{x^2+6x+9}{2^{x}-4} textgreater 0; ; Rightarrow ; ; frac{(x+3)^2}{2^{x}-4} textgreater 0\\Tak; kak; ; ; (x+3)^2 geq 0; ; i; ; frac{(x+3)^2}{2^{x}-4} textgreater 0,; ; to ; ; (2^{x}-4) textgreater 0; ; to ; ; 2^{x} textgreater 4; ,\\2^{x} textgreater 2^2; ; to ; ; underline {x textgreater 2}$