There is a series of numbers denoted by a1, a2, a3, ... aX (Not in Arithmetic Progression!). Here's what we have:
a1 = 1
and
a(M + N) = aM + aN + MN
Using the two given data, find the 2001st term.
In case you have trouble understanding:
a1 is the first term, a2 is the second term and so on. aX is the xth term.
a(M + N) denotes the (M + N)th term of the series.
And remember that this is NOT an Arithmetic Progression!
2007-12-25
17:09:11
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6 answers
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asked by
Akilesh - Internet Undertaker
7