# Math Help - EXAM Tomorrow! Help with recurrence relationships.

1. ## EXAM Tomorrow! Help with recurrence relationships.

I hope it isn't against the rules but here is a link to another math forum I posted my problem in. I would copy and paste but it wouldn't be readable because of the code used to type it.

S.O.S. Mathematics CyberBoard :: View topic - Recurrence Relations: Solving first and second order

Thank you for ANY help!

2. Originally Posted by Mattpd
I hope it isn't against the rules but here is a link to another math forum I posted my problem in. I would copy and paste but it wouldn't be readable because of the code used to type it.

S.O.S. Mathematics CyberBoard :: View topic - Recurrence Relations: Solving first and second order

Thank you for ANY help!
for your first question, $2^{n-1} \, 2^2 = 2^{n-1+2} = 2^{n+1}$

for the second one, they just expanded the summation where c = 2.