Inverse of log function
posted by Jen .
Find the inverse of
f(x) = log(2+x)  4
the base is "a"
Call f(x) y
y = loga(2+x) 4
y+4 = loga(2+x)
a^(y+4) = 2 + x
x = a^(y+4)  2
drwls, you have merely solved the equation for x.
The question was to find the "inverse", so the actual answer should be
y = a^(x+4)  2
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