Math 1323 – Precalculus
Dr. Cordero
- The following will help with Problems # 5 and # 7 in the homework.
- The domains of
and 
are the intersection I of the domains of 
and 
; that is, the numbers that are common to both domains. - The domain of
is the subset of I consisting of all 
in I such that 
.
****See Example 2 on page 185.**** - The domain of
is the set of all in the domain of such that 
is in the domain of 
.
****See Example 4 on page 188.****
- For Problem # 45 in the homework, read Example 6 on page 189. Use the formula for the area of a circle
.