Question
Fri February 10, 2012 By:
 

The pth term of an A.P is q and qth term is p.find (p+q)th term.

Expert Reply
Sat February 11, 2012
Let the 1st term be a and common difference be d
So
Tp = a + (p-1)d = q
Tq = a + (q-1)d = p
On Solving we get , d = -1 , a = p + q - 1
Tp+q = a + (p+q-1)d = p+q-1 + (p+q-1)(-1) = 0
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