Find (a) the domain of f and (b) f−1.
f(x)=ln(2+lnx)
(a) x>............
(b) f−1(x)=...........
1
Expert's answer
2012-10-23T10:15:35-0400
a) ln x so x>0 in other hand 2+ln(x)>0 so ln(x)>-2 so x>e^(-2)>0 x>e^(-2) b)f^(-1) can be defined on every point because for every y y=ln(2+ln(x)) have exactly one solution e^y=2+ln(x)
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