Question

найдите область определения функции $y= frac{ sqrt{3x-1} }{ x^{2} -1}$

Answer 1

$left { {{3x-1 geq 0} atop {x^2-1ne 0}} right. ; ; ; left { {{x geq frac{1}{3}} atop {xne 1,xne -1}} right. ; ; to ; xin [frac{1}{3},1)U(1,+infty)$