The domain of the functionf(x) = log0.2log0.5log0.25x is
Question
The domain of the functionf(x) = log0.2log0.5log0.25x is
Solution
The domain of a logarithmic function is always (0, ∞). This is because you can only take a logarithm of a positive number.
However, in the case of the function f(x) = log0.2(log0.5(log0.25x)), we have to consider the innermost logarithm first, log0.25x.
For log0.25x to be defined, x must be greater than 0.
Then, for log0.5(log0.25x) to be defined, log0.25x must be greater than 0.
Finally, for log0.2(log0.5(log0.25x)) to be defined, log0.5(log0.25x) must be greater than 0.
So, the domain of the function f(x) = log0.2(log0.5(log0.25x)) is (0, ∞).
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