Let f, g: R→R be defined by f (x) = {4x + 1 , if x ≥0,    x , if x < 0} g(x) = {3x , if x ≥0 ,  x + 3 , if x < 0.} Find the inverse of f ◦g.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Let f, g: R→R be defined by
f (x) = {4x + 1 , if x ≥0,    x , if x < 0}

g(x) = {3x , if x ≥0 ,  x + 3 , if x < 0.}

Find the inverse of f ◦g.

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