Chapter 2.1, Problem 73AYU

In problems 67-76, for the given functions $f$ and $g$, find the following. For parts (a)-(d), also find the domain.

a. $\left(f\text{ + }g\right)\left(x\right)$

b. $\left(f\text{ - }g\right)\left(x\right)$

c. $\left(f·g\right)\left(x\right)$

d. $\left(\frac{f}{g}\right)\left(x\right)$

e. $\left(f\text{ + }g\right)\left(4\right)$

f. $\left(f\text{ - }g\right)\left(3\right)$

g. $\left(f·g\right)\left(2\right)$

h. $\left(\frac{f}{g}\right)\left(1\right)$

$f\left(x\right)\text{ = }x\text{ - 1}$; $g\left(x\right)\text{ = 2}{x}^2$