identify the domain of the following function: f(x) = x+1/x-2
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The value of f(x) is real for all real values of x except 2, because is x = 2, then the denominator is = 0, and the whole fraction tends to infinity, i.e. not defined. So therefore,
D = R - {2}, where R is the set of real numbers, {2} in curly brackets denoted that the set contains only one value, which is 2.
Hope you understood.
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