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The first and last term of an A. P are 1 and 121 respectively. Find the number of terms in the A.P and the common difference between them if the sum of the term is 1281​
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The first and last term of an A. P are 1 and 121 respectively. Find the number of terms in the A.P and the common difference between them if the sum of the term is 1281​

User BassMHL
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1 vote

Answer:

No.of terms=21

Common difference=6

User Aaron Silverman
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