3 years ago

Please help with question #3!

1 answer:

5 0

Answer:

e. 1/(49n² +7n)

Step-by-step explanation:

$\dfrac{(7n-1)!}{(7n+1)!}=\dfrac{(7n-1)!}{(7n+1)(7n)(7n-1)!}=\dfrac{1}{(7n+1)(7n)}\\\\=\dfrac{1}{49n^2+7n}$

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