If \( f(x)=\frac{1}{x-1} \) and \( g(x)=\frac{1}{x^{2}-1} \) then f...

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If \( f(x)=\frac{1}{x-1} \) and \( g(x)=\frac{1}{x^{2}-1} \) then find the points of discontinuous of fog(x)
P
(1) \( x=\pm 1, \pm \sqrt{2} \)
(2) \( x=\pm 2, \pm \sqrt{2} \)
W
(3) \( x=\pm 2, \pm \sqrt{3} \)
(4) \( x=\pm 1, \pm \sqrt{3} \)
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