Find the fifth term and the nth term of the geometric sequence whose initial term, a, and common ratio, r, are given.a = 2; r = 5?
A. a5 = 6250?5, an = 2 ? 5n?n
B. a5 = 1250?, an = 2 ? 5n-1?
C. a5 = 2 + 20?, an = 2 + 5?(n-1)
D. a5 = 1250?4, an = 2 ? 5n-1?n-1
Answer: D
Mathematics
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