Question

Determine the 10th term of the sequence 3,10,28,72,176,....... State the general term.

Answer 1

i would start by making a list of differences

Answer 2

ok so what is next

Answer 3

http://www.jiskha.com/display.cgi?id=1289859299 should help

Answer 4

thanks

Answer 5

np:)

Answer 6

Try this
\[a_n = (2n+1)2^{n-1}\]