Answer:
First term is [tex]\frac{3}{2}[/tex].
Common difference: -1
Step-by-step explanation:
Given the sequence:
[tex]\frac{3}{2} , \frac{1}{2} , -\frac{1}{2}, -\frac{3}{2}, ...[/tex]
we notice that one term is generated from the previous one by subtracting from it "1". That means that the common difference for this sequence is "-1", and its first term is [tex]\frac{3}{2}[/tex].
