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Question

Find the for an AP whose term is given by .

A

B

C

D

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Text SolutionText solutionverified iconVerified

We know that nth term,  
& Sum of first terms,  , where & are the first term amd common difference of an AP.
Since,                     ...(1)
On putting in successively, we get


and so on..
Thus the sequence is
Clearly it is an AP with first term and common difference
Now, Required sum

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Question Text
Find the for an AP whose term is given by .

Answer TypeText solution:1
Upvotes150