<img src="https://tex.z-dn.net/?f=%5Csum%20_%7Bn%3D0%7D%5E%7B%5Cinfty%20%5C%3A%7D%5Cfrac%7B%5Cleft%28-1%5Cright%29%5En%5Carctan%

All categories

3 years ago

20%5Cleft%28n%5Cright%29%7D%7Bn%5E2%7D" id="TexFormula1" title="\sum _{n=0}^{\infty \:}\frac{\left(-1\right)^n\arctan \left(n\right)}{n^2}" alt="\sum _{n=0}^{\infty \:}\frac{\left(-1\right)^n\arctan \left(n\right)}{n^2}" align="absmiddle" class="latex-formula"> Please Help.

Mathematics

1 answer:

LUCKY_DIMON [66]3 years ago

8 0

-1/00 should be the answer

You might be interested in

What is the 4th term in the sequence? <br><br> C(1)=56<br> C(n)= c(n-1)•1/2

Anton [14]

Answer:

The 4th term is 7

Step-by-step explanation:

we have

$C(n)=C(n-1)\frac{1}{2}$

$C(1)=56$

step 1

Find C(2)

For n=2

$C(2)=C(1)\frac{1}{2}$

$C(2)=(56)\frac{1}{2}=28$

step 2

Find C(3)

For n=3

$C(3)=C(2)\frac{1}{2}$

$C(3)=(28)\frac{1}{2}=14$

step 3

Find C(4)

For n=4

$C(4)=C(3)\frac{1}{2}$

$C(4)=(14)\frac{1}{2}=7$

therefore

The 4th term is 7

3 0

3 years ago

What is the equation of the line passing through (0,0) and (1,4)

posledela

$\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
&({{ 0}}\quad ,&{{ 0}})\quad 
% (c,d)
&({{ 1}}\quad ,&{{ 4}})
\end{array}
\\\\\\
% slope = m
slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{4-0}{1-0}\implies 4$

$\bf y-{{ y_1}}={{ m}}(x-{{ x_1}})\implies y-0=4(x-0)\implies \boxed{y=4x} 
\\
\left. \qquad \right. \uparrow\\
\textit{point-slope form}$

6 0

3 years ago

CONVERTING DECIMALS!

Ulleksa [173]

Hope you mean converting to fractions. Hope this helps

5 0

3 years ago

Need to find the constant

evablogger [386]

time, t = 50

rate, r = 40

number of words, w

t = w/r

=》 50 = w/ 40

=》 w = 50 × 40 = 2000words

4 0

3 years ago

Tickets to Disney World are $100..The price is going to increase on January ,What is the cost percentage of change if the cost i

bearhunter [10]

Answer:

I am not so sure but if I were to choose it went up from an 200% increase.

Step-by-step explanation:

8 0

3 years ago