its wrong his using the wrong Sn the result from what you gave me is going to be negative. Your friend used Sn= a(r^n-1)/r-1 his meant to use Sn=a(1-r^n)/1-r
Thanks all i'll try these new methods. I get distracted very easily...
Just got a new TV and i guess i just gotta work out a schedule that works for me.
Well as you all know yr 11 starts the HSC in term 4. I'm just having difficulty studying/doing hw on time and honestly im really worried about english std, im alrdy failing == getting a rank of 50 out of 173. Please post successful study tips/ timetables which include eating times.
Thanks heaps