in of Real Functions Find the domain of each of the following functions.
(i) $f(x)=\frac{x-2}{x+3}$
(ii) $f(x)=\frac{x+4}{x-3}$
(iii) $f(x)=\frac{1}{x}-1$
(iv) $f(x)=\frac{1}{x}+1$
(v) $f(x)=\frac{x-1}{x^{2}-3 x+2}$
(vi) $f(x)=\frac{x^{2}-5 x+4}{x^{2}-3 x+2}$
(vii) $f(x)=\frac{x^{2}+4}{x^{2}+2}$
viii) $f(x)=\frac{x^{2}+9}{x^{2}-4}$
(ix) $f(x)=\frac{x^{2}+x+1}{x^{2}-x+1}$\text { (x) } f(x)=\frac{3 x^{2}+9 x+17}{3 x^{2}+9 x+7}