Simplified would be 2a+2b
1. You have the function 
2. You know that
with
, because the division by zero is not defined. So ,
for
where
is a integer number.
3. Then, to find the domain of the function given in the problem, you must make 
Where
is odd number.
4. Therefore:

5. Finally, the domain is: 
The answer is: 
For this question you should know:
1/2 = 5/10
and
4/5 = 8/10
so you can see 8/10 is greater than 5/10 so the answer is no
4/5 is greater than 1/2 :)))
i hope this is helpful
have a nice day
Question: 10^-4 in standard form
Work:
To write 10^-4 in standard form you just simplify the equation.
10^-4 equals 1/10000 or 0.0001
Final Answer:
10^-4 equals 1/10000 or 0.0001
Im not sure what inequality means but it is 4°C<22°C