I saw a final answer from a question: therefore how they will become like this?
What is and ? Is there any formula or rule for them?
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ln(x) = y means e^y = x
ln(x) = 1 then e^1 = x
another way of looking at this is that ln(x) and e^x are inverses therefore
e^(ln(x) = ln(e^x) = x
so if ln(x) = 1
e^(ln(x)) = e^1
x = e