3 years ago

Is the relationship proportional yes/No

Mathematics

2 answers:

lutik1710 [3]3 years ago

7 0

No it is not proportional

PtichkaEL [24]3 years ago

7 0

No because x time 7 = y in the 4th row but not the other rows

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schepotkina [342]

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3 years ago

Does (-2)^n/( 3^n+1) converge or diverge?

hodyreva [135]

$\left|\dfrac{(-2)^n}{3^n+1}\right|=\dfrac{2^n}{3^n+1}$

As $n\to\infty$ , the sequence $a_n=\left(\dfrac23\right)^n$ converges to zero.

If you're talking about the infinite series

$\displaystyle\sum_{n\ge0}\dfrac{(-2)^n}{3^n+1}$

well we've shown by comparison that this series must also converge because we know any geometric series $\sum\limits_n r^n$ will converge as long as $|r|$ .