Question 323658
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The argument of any logarithm function must be greater than zero.


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 7\ -\ x\ >\ 0]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ -x\ >\ -7]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ x\ <\ 7]


Domain: *[tex \LARGE \{x\,|x\,\in\,\mathbb{R},\ x\ <\ 7\}]


John
*[tex \LARGE e^{i\pi} + 1 = 0]
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