If you intend some other function t, then express it with the grouping symbols in the correct places.
No restrictions on the numerator.
The denominator has the requirement or or , since the denominator must not be zero.
Domain for t(x) in interval notation, (1, infinity).
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The denominator has the requirement or or .
The domain for t(x) is , using interval notation, [1, infinity).
*************************************************************** Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website! .
The answer x >= 1 by @josgarithmetic is INCORRECT.
The correct answer is x > 1.
At x = 1, the denominator of the function is 0 (zero, ZERO), so x=1 DOES NOT belong to the domain of the function.