# Pre-Calc/Trig...

what is In e^4.3 equivalent to? How?

1. 6
1. by definition,

ln(e^x) = x
e^(lnx) = x
ln and e^ are inverse operations. Just as
cos(arccos(x)) = x
√(x^2) = x
a*(x/a) = x
a+(x-a) = x

So, ln e^4.3 = 4.3
e^(ln 4.3) = 4.3

posted by Steve
2. oh okay, thanks!

posted by Anonymous

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