Question 205965
You are dealing with an arithemetic sequence with d=r, a(sub1)=2, and n=2001.


Your formula for finding the a(subn) term of an arithmetic sequence is 

a(subn)=a(sub1) + (n-1)d = 2 + (2001-1)(3) = 6002.


I hope this help! Feel free to leave comments or concerns. -- David