Question 978376
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*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 0.5e^{4x}\ =\ 13]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ e^{4x}\ =\ 26]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \ln\left(e^{4x}\right)\ =\ \ln(26)]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \  4x\ln(e)\ =\ \ln(26)]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \  x\ =\ \frac{\ln(26)}{4}]


Just do the arithmetic.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it

*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \