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If (p+q)^(th) term of an A.P. is m and (...

If `(p+q)^(th)` term of an A.P. is m and (p-q)th term is n, then the pth term is:

A

`1/2 (m-n)`

B

mn

C

`sqrt(mn)`

D

`1/2(m+n)`

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