- #1
Precursor
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Homework Statement
http://img171.imageshack.us/img171/543/pro3.png
The Attempt at a Solution
[tex]= f(g(h(x)))[/tex]
[tex]= f(g(\sqrt{x+3}))[/tex]
[tex]= f(cos\sqrt{x+3})[/tex]
[tex]= \frac{2}{cos\sqrt{x+3}+1}[/tex]
Is this right, and am I showing enough work to get full marks? Do I need restrictions for example?
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