Math, asked by ayeshakkhan9372, 1 year ago

If the sum of first n terms of an ap is an2+bn find its common difference

Answers

Answered by Chimiom

0

Answer:

Step-by-step explanation:

Sn=136 d=4 l=31

Sn =n÷2 (a+l)

136=n÷2 (a+31)

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