# trig

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rules of logarithms: can someone please explain how to do these problems?
I understand the rules I just don't understand how they apply

1. e^(3lnx)
2. e^(1+2lnx)

thanks!

• trig -

the first is a direct result of the "rule" that I showed you in your post from last night. Did you look at it?

http://www.jiskha.com/display.cgi?id=1233373241

for the second....
e^(1+2lnx)
= (e^1)(e^2lnx) , to multiply powers with the same base, we add the exponents
= (e^1)(e^lnx^2)
= e(x^2)

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