Answer:
Arithmetic
Step-by-step explanation:
An arithmetic progression is characterised by the first term (a), number of terms (n) and common difference (d).
F(2)=2(3*2)+1
f(2)=2(6)+1
=13
answer is 13
For a monic quadratic (factor of 1 on
) we always add half the coefficient on the linear (
) term, so

Answer: 49/4

