Question

find the domain of the real valued function f(x)=x



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Answer 1

Step-by-step explanation:

We have,

$f(x) = \frac{2 {x}^{2} - 5x + 7 }{(x - 1)(x - 2)(x - 3)}$

For f(x) to be defined,

(x - 1)(x - 2)(x - 3) ≠ 0,

=> x ≠ 1, 2, 3

So,

$dom(f) \in( - \infty \: \: to \: \: 1 ) \: u \: (1 \: \: to \: \: 2) \: u \: (2 \: \: to \: \: 3) \: u \: (3 \: \: to \: \: \infty )$