3 years ago

Plz help us with this!!

Mathematics

1 answer:

Lunna [17]3 years ago

7 0

Answer:

It is 4...........

Step-by-step explanation:

Hope this helps.

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Find the value of given expression<br><br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B1221%20%5Ctimes%201221%7D%20" id="TexFo

densk [106]

Answer:

$1221\sqrt{x}$

Step-by-step explanation:

1221 x 1221 = 1490841

square root of 1490841 is 1221

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3 years ago

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Value of complex number i^7+1/i^4

Vera_Pavlovna [14]

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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 $|r|$ .