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Topic:
Arithmetic sequence question
Replies:
1
Last Post:
Mar 14, 2005 10:09 PM




Re: Arithmetic sequence question
Posted:
Mar 14, 2005 10:09 PM


I come from china, try to make friend with you! let me answer your question! S(n)=4n*n+3*n S(n+1)=4*(n+1)*(n+1)+3*(n+1) T(n+1)=4*(n+1)*(n+1)+3*(n+1)4*n*n3*n =4(n*n+2*n+1)+3*n+34*n*n3*n =8*n+7 =8*(n+1)1 T(n)=8*n1 so the result is T(n)=8*n1



