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Q.
The domain of the function $f\left(x\right) = \frac{1}{\sqrt{x^{2}-3x+2} }$ is
Relations and Functions
Solution:
For f (x) to be defined, we must have
$x^{2} - 3x + 2 = \left(x - 1\right) \left(x - 2\right) > 0 \Rightarrow x < 1$ or $> 2$
Domain of $f = \left(- \infty,1\right) \cup \left( 2, \infty\right).$