3. Describe the following sets using set-builder notation different from text answers.
a. {5,7,9,...,77,79}
Set-builder notation:
Sagemath code and output:
b. the rational numbers that are strictly between -1 and 1
Set-builder notation:
Sagemath code and output:
c. the even integers
Set-builder notation:
Sagemath code and output:
d. {-18,-9,0,9,18,27,...}
Set-builder notation:
Sagemath code and output:
I