Question

Find the domain of the function $f(x)=\frac{(x^2+1)}{(x^2-3x+3)}?$

• A. $R-\{1,2\}$
• B. $R-\{1,4\}$
• C. $R$
• D. $R-\{1\}$

Answer 1

Answer: (C)

Given, $f(x)=\frac{x^2+1}{x^2-3x+3}$
At no point of $R,x^2-3x+3=0$
So, required domain =R