problem solving
@srinathakarapu (3093)
India
November 27, 2006 4:51am CST
The infinite sequence a1, a2,…, an,… is such that a1= 2, a2= -3, a3= 5, a4= -1, and an= an-4 for n 4. What is the sum of the first 97 terms of the sequence?
3 responses
