A.P

Asked by deepitapai | 9th Mar, 2009, 12:42: PM

Expert Answer:

pth term of AP = q

a+ (p-1)d = q  ....(1)

qth term of AP = p

a + (q-1)d = p  ....(2)

Solving (1) and (2), we get

d = -1 and a = q+p-1

rth term of the AP = a+(r-1)d  =  q+p-1 + (r-1)(-1) = p+q-r

Answered by  | 9th Mar, 2009, 12:50: PM

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