Answer:
the answer is B 1/6
Step-by-step explanation:
Answer:
The Taylor series is
.
The radius of convergence is
.
Step-by-step explanation:
<em>The Taylor expansion.</em>
Recall that as we want the Taylor series centered at
its expression is given in powers of
. With this in mind we need to do some transformations with the goal to obtain the asked Taylor series from the Taylor expansion of
.
Then,

Now, in order to make a more compact notation write
. Thus, the above expression becomes

Notice that, if x is very close from 3, then y is very close from 0. Then, we can use the Taylor expansion of the logarithm. Hence,

Now, substitute
in the previous equality. Thus,

<em>Radius of convergence.</em>
We find the radius of convergence with the Cauchy-Hadamard formula:
![R^{-1} = \lim_{n\rightarrow\infty} \sqrt[n]{|a_n|},](https://tex.z-dn.net/?f=R%5E%7B-1%7D%20%3D%20%5Clim_%7Bn%5Crightarrow%5Cinfty%7D%20%5Csqrt%5Bn%5D%7B%7Ca_n%7C%7D%2C)
Where
stands for the coefficients of the Taylor series and
for the radius of convergence.
In this case the coefficients of the Taylor series are

and in consequence
. Then,
![\sqrt[n]{|a_n|} = \sqrt[n]{\frac{1}{3^nn}}](https://tex.z-dn.net/?f=%20%5Csqrt%5Bn%5D%7B%7Ca_n%7C%7D%20%3D%20%5Csqrt%5Bn%5D%7B%5Cfrac%7B1%7D%7B3%5Enn%7D%7D)
Applying the properties of roots
![\sqrt[n]{|a_n|} = \frac{1}{3\sqrt[n]{n}}.](https://tex.z-dn.net/?f=%20%5Csqrt%5Bn%5D%7B%7Ca_n%7C%7D%20%3D%20%5Cfrac%7B1%7D%7B3%5Csqrt%5Bn%5D%7Bn%7D%7D.)
Hence,
![R^{-1} = \lim_{n\rightarrow\infty} \frac{1}{3\sqrt[n]{n}} =\frac{1}{3}](https://tex.z-dn.net/?f=R%5E%7B-1%7D%20%3D%20%5Clim_%7Bn%5Crightarrow%5Cinfty%7D%20%5Cfrac%7B1%7D%7B3%5Csqrt%5Bn%5D%7Bn%7D%7D%20%3D%5Cfrac%7B1%7D%7B3%7D)
Recall that
![\lim_{n\rightarrow\infty} \sqrt[n]{n}=1.](https://tex.z-dn.net/?f=%5Clim_%7Bn%5Crightarrow%5Cinfty%7D%20%5Csqrt%5Bn%5D%7Bn%7D%3D1.)
So, as
we get that
.
Taiga biome has more vegetation while tundra is just ice
A function has only one y-value for each x-value. If you find a set that has an x-value used more than once, it is not a function, because that x-value is now paired with more than one y-value.
The fourth answer is the only one that has the same x-value used more than once.
Side note: Don’t worry if a y-value is used more than once. That’s totally fine. It’s all about the x-values.
We call a full circle or a full rotation 360 degrees. There's nothing magic
or mathematical about that number. It was invented by people. It could
have been any number they wanted.
But it was a great choice because it has a lot of factors. With 360 degrees
in a full rotation, you can split up a full rotation into 2, 3, 4, 5, 6, 8, 9, 10, 12,
15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, or 180 equal pieces, without
ever slicing up a degree !