Question

If e^5x = k, where k is any positive number, then what is the value of x?

A. lnk/ln5
B. ln(k/5)
C.1/5*ln k
D. 5 * 1/ln k

Answer 1

`e^(5x)=k\implies\ln(e^(5x))=\ln(k)\implies\boxed{x=\ln(k)/5}`

Hope this helps.