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Home / Doubts and Solutions/CBSE/Class 10/Mathematics

alogorithm

Asked by 13th February 2009, 10:17 PM
Answered by Expert
Answer:

Let the first term be a and the common difference be d.

Then,

nth term is given by the formula,

nth term = a+(n-1)d

So

p the term = a+(p-1)d

and

 qth term =a+(q-1)d

According to question,pth term is q and qth term is p.

So,

 

a+(p-1)d=q

a+(q-1)d=p

So,

 (p+q)th term

=a+(p+q-1)d

At this stage you can substitute the values.

Answered by Expert 14th February 2009, 9:13 AM
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