I need to calculate the first 10 N's series, in convergant series. If a3=(-1)/24 and a6=1/3

And another one

Check where the limit if heading to

lim (1+0,5+0,25+0,0625+....+0,5^n)

n-infinity

I need to return this tomorrow, so i am really desperad seeking help here :)

Those are the only ones I can't handle. Plese help me if you can solve this !