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irinina [24]
3 years ago
13

What the geometric mean of 4 and 8​

Mathematics
1 answer:
Arte-miy333 [17]3 years ago
5 0
I think the correct answer is 5.6569
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andreyandreev [35.5K]
The limit is equivalent to the value of the derivative of \cos x at x=\dfrac\pi2. (See definition of derivative)

(\cos x)'=-\sin x\implies (\cos x)'\bigg|_{x=\pi/2}=-\sin\dfrac\pi2=-1
4 0
3 years ago
A circle with a radius of 6cm sits inside a circle with radius of 9cm
pshichka [43]

Answer:

Please provide a question so we can answer, thank you.

5 0
3 years ago
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Use the power series representation of f(x)=<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B1-5x%7D%20" id="TexFormula1" t
Sergeu [11.5K]
For |5x|, we have

\dfrac1{1-5x}=\displaystyle\sum_{n\ge0}(5x)^n

and so

g(x)=\dfrac{15}{1-5x}=15\displaystyle\sum_{n\ge0}(5x)^n=3\sum_{n\ge0}5^{n+1}x^n

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4 0
3 years ago
Mrs. Avery’s test for her 1st period lasted 9 minutes longer than it was supposed to. Write an expression for the total amount o
DedPeter [7]
It is m + 9 because if we let m = 60 and the lest was 9 minutes longer than m, the test would be 69 minutes long. Therefore the answer is m + 9
4 0
3 years ago
Help me please hurry it up.
Katena32 [7]

The answer is either to change the - 1 to 0, or to add + 1 to it next to the - 1.

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