Arithmetic Mean and Averages

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Question 1 of 94

The $A.M.$ of the observations $1.3.5,3.5,7,9,.,(2n-1)(2n+1) (2n+3)$ is $(\forall\ n\ \in\ N)$

Select Your Answer:

$2n^{3}+6n^{2}+7n-2$

$n^{3}+8n^{2}+7n-2$

$2n^{3}+5n^{2}+6n-2$

$2n^{3}+8n^{2}+7n-2$

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