24okkkk....thanks sir.......I will not waste my time on it then.........BUT ONE COMPLAINT.......WHERE IS GRAPH OF THE DAY.?????????
If n is a prime number which will divide neither a,b nor a+b prove that:
an-2b-an-3b2+an-4b3......+abn-2 exceeds by 1 a multiple of n.
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6 Answers
62this is a gp with common ratio -b/a!
number of terms is n-3
so it is
an-2b{1-(b/a)n-3}/(1-b/a)
Now does it make some more sense?
you have to use Fermat's Theorem....
I dont think it is in syllabus unless you want to prepare for olympiads!
2462http://www.targetiit.com/iit_jee_forum/posts/daily_graph_20_01_09_1795.html
It was already put up.. and u already posted a reply there :O
62There were these 2 graphs on the 19th...!!!
Daily Graph 19-01-09 (bonus question!)
Daily Graph 19-01-09
