SOLUTION: Prove that a sequence is arithmetic Q: The sum of the first n terms of a progression is given by Sn=n(3n−4). show that the progression is an arithmetic progression

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Question 838702: Prove that a sequence is arithmetic
Q: The sum of the first n terms of a progression is given by Sn=n(3n−4). show that the progression is an arithmetic progression

Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!


, for all n

Therefore the sequence is arithmetic.