Question

найти область определения функции;

Answer 1

$y=frac{sqrt{x}}{x-4}\\OOF:; left { {{x geq 0} atop {x-4ne 0}} right. ; left { {{x geq 0} atop {xne 4}} right. ; to ; ; xin [0,4)U(4,+infty)\\\y=sqrt{5x-17}+sqrt{22-8x}\\OOF:; left { {{5x-17 geq 0} atop {22-8x geq 0}} right. ; left { {{x geq frac{17}{5}} atop {x leq frac{22}{8}}} right. ; left { {{x geq 3,4} atop {x leq 2,75}} right. ; ; to ; ; xin varnothing,;pystomy ; mnozestvy$