Function for sequence!?
I know writing functions for seqences takes time and practice, but ive been going at this one for some time now and i still dont know how it is done. If someone could please help me solve it and explain your reasoning, that would be amazing.
Write a(subscript)n explicitly as a function of n on the basis of the first five terms a(subscript)n, when N STARTS AT 0. note that it starts out at zero not one.
2/2, 6/4, 12/8, 20/16, 30/32
WAIT. I think i figured it out. Would the answer be (n+1)(n+2)/2^n+1???
- PaulaLv 79 years agoBest Answer
Yes that's right. Bottom line is clearly 2^(n+1), and you've worked out the formula for the top line too.