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CBSE Class 10 Answered

question
Asked by sonaisha | 09 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 | 10 Mar, 2009, 12:17: PM
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