Answer:
The 3rd term is -14
Explanation:
This is a recursive formula. It tells us that the first term is 20 and that the common difference is -17.
a(1) = 20
a(2) = a(1) - 17 = 3
a(3) = a(2) - 17 = -14
a3 = -14
a(n) = a(n - 1) - 17
a(2) = a(2-1) - 17
a(2) = a(1) -17
=20-17 = 3
a(3) = a(3-1) - 17
= a(2) -17
3-17
-14
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