Determine the third term of the sequence defined by the formula:
t1=2a
t2=3a−1
t_n = 2t_n−1 − t_n−2, n>3
Select one:
a. -1
b. 4
c. −9a+2
d. 4a−2
tn = 2tn−1 − tn−2 , n>3
t3 = 2(3a - 1) - 2a = 4a - 2
