Need help converting exponential expression to base e

[From: ] [author: ] [Date: 12-08-13] [Hit: ]

I need help with the problem "Rewrite the exponential expression 4^x with base e." What do I do?

You replace 4 by e^(ln 4), so you have [e^(ln 4)]^x

Then you use the rule that (a^b)^c = a^(bc)

y--->4^x lny -->x ln4 so y--> e^(xln4)

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