Compound Functions
Maximums and Minimums
To find a maximum or minimum value of a function, look for parts of
the expression—especially squares—that have upper or lower limits.
f(g(x)) means apply g first and then apply f to the result.
g(f(x)) means apply f first and then apply g to the result.
f(x)g(x) means apply f and g separately and then multiply the results.