2 years ago

Maths I’ll give brainiest:))

Mathematics

2 answers:

kakasveta [241]2 years ago

7 0

Y is 5
X is 3
Hope this helps

Jlenok [28]2 years ago

6 0

Answer:

x=2

y=3

Step-by-step explanation:

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2 to the power of negative 2

olganol [36]

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2 years ago

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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 $|r|$ .