If the mth term of an Arithmetic Progression (AP) is 1/n and nth term is 1/m, then find the sum of mn terms.

If the mth term of an Arithmetic Progression (AP) is 1/n and nth term

1.	If the m^th term of an Arithmetic Progression (AP) is 1/n and n^th term is 1/m, then find the sum of mn terms.
A.	(mn-1)/4
B.	(mn+1)/4
C.	(mn+1)/2
D.	(mn-1)/2
Answer» D. (mn-1)/2

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If the m^th term of an Arithmetic Progression (AP) is 1/n and n^th term is 1/m, then find the sum of mn terms.

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