+0  
 
0
120
2
avatar

I want to solve 3.c)

 

the answer is \(- {209 715 \over 256}\), what am i doing wrong?

 Jul 6, 2018
 #1
avatar+20842 
0

how am i solving this geometric series wrong?

 

\(\begin{array}{|rcll|} \hline && (-4)^{10} \\ &=& {\color{red}+}4^{10} \qquad \text{ because the exponent is even!} \\ &=& 1048576 \\ \hline \end{array} \)

 

laugh

 Jul 6, 2018
 #2
avatar
0

C)

 

Sum = 1/256 x [ 1 - (-4)^10] / [1 - (-4)]

Sum = 1/256 x [1 - 1,048,576] / [1 + 4]

Sum = 1/256 x [-1,048,575] / [5]

Sum = 1/256 x [ - 209,715]

Sum = - 209,715 / 256

 Jul 6, 2018

29 Online Users

avatar
avatar
avatar
avatar
avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.