question
Asked by sonaisha | 9th Mar, 2009, 11:56: PM
Expert Answer:
we'll be using the fact that the sum of n terms of an A.P. with first term=a and
common difference =d
is
n/2[ 2a+(n-1)d]
Pl check if there anyhting else given in the question regarding the two A.Ps.Do get back to us.
Answered by | 10th Mar, 2009, 12:17: PM
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