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Damm [24]
3 years ago
12

How many different messages can be transmitted in n microseconds using three different signals if one signal requires 1 microsec

ond for transmittal, the other two signals require 2 microseconds each for transmittal, and a signal in a message is followed immediately by the next signal?
Computers and Technology
1 answer:
SIZIF [17.4K]3 years ago
6 0

Answer:

a_{n} = 2/3 . 2^n + 1/3 . (-1)^n

Explanation:

Let a_{n} represents number of the message that can transmitted in <em>n </em>microsecond using three of different signals.

One signal requires one microsecond for transmittal: a_{n}-1

Another signal requires two microseconds for transmittal: a_{n}-2

The last signal requires two microseconds for transmittal: a_{n}-2

a_{n}= a_{n-1} + a_{n-2} + a_{n-2} = a_{n-1} + 2a_{n-2}, n ≥  2

In 0 microseconds. exactly 1 message can be sent: the empty message.

a_{0}= 1

In 1 microsecond. exactly 1 message can be sent (using the one signal of one  microseconds:

a_{0}= 1

2- Roots Characteristic equation

Let a_{n} = r^2, a_{n-1}=r and a_{n-2}= 1

r^2 = r+2

r^2 - r - 2 =0                 Subtract r+6 from each side

(r - 2)(n+1)=0                  Factorize

r - 2 = 0 or r +1 = 0       Zero product property

r = 2 or r = -1                 Solve each equation

Solution recurrence relation

The solution of the recurrence relation is then of the form a_{1} = a_{1 r^n 1} + a_{2 r^n 2} with r_{1} and r_{2} the roots of the characteristic equation.

a_{n} =a_{1} . 2^n + a_{2}.(-1)"

Initial conditions :

1 = a_{0} = a_{1} + a_{2}

1 = a_{1} = 2a_{1} - a_{2}

Add the previous two equations

2 = 3a_{1}

2/3 = a_{1}

Determine a_{2} from 1 = a_{1} + a_{2} and a_{1} = 2/3

a_{2} = 1 - a_{1} = 1 - 2 / 3 = 1/3

Thus, the solution of recursion relation is a_{n} = 2/3 . 2^n + 1/3 . (-1)^n

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There are no breakpoints in the "Access Customer Account" subpage however there is an error. What will happen if you choose to s
blsea [12.9K]

Answer:

Move to the breakpoint at "Get Customer Details" stage.

Explanation:

This question is incomplete, we need a diagram and four options to resolve this questions, I attached the diagram and the options.

- The process will work all stages in the "Access Customer Account" page until the error is thrown and then focus would move to the breakpoint at "Get Customer Details" stage.

- The process will work all stages in the "Access Customer Account" page until the error is thrown and then focus would move to the "Recover1" stage.

- The process will work all stages in the "Access Customer Account" page until the error is thrown and then focus would move to the stage containing the error on the "Access Customer Account" page.

- The process will work all stages in the "Access Customer Account" page until the error is thrown and then focus would move to the "Exception1" stage.

In this case, we are going to run an extra from subpage testing in <u>Process studio</u>. Process studio is a tool where we can test these processes.

The process always it's going to work all stages in the "Access Customer Account" we're going to receive an interruption when the error is activated, moving the focus to the Get Customer Details stage.

There is an error in the stage Access Customer Account, if we run the processes with the Go button, the focus should move into the Recover1 stage, and should show the error.

But in this particular example, we must use the STEP OUT BUTTON, What means this?

The process it's going be executed, but won't show any error or message, because we have used the STEP OUT BUTTON.

If we use the STEP OUT BUTTON, the process should end but in this case, we have a breakpoint in Get Customer Details stage, for that the focus and the process will end in Get Customer Details stage and not at the end or at the Recover1 stage.

8 0
3 years ago
Write a function to sum the following series:
Phoenix [80]

Answer:

<u>C program to find the sum of the series( 1/2 + 2/3 + ... + i/i+1)</u>

#include <stdio.h>

double m(int i);//function declaration  

//driver function

int main() {

int i;

printf("Enter number of item in the series-\n");//Taking input from user

scanf("%d",&i);

double a= m(i);//Calling function

printf("sum=%lf",a);

return 0;

}

double m(int i)//Defining function

{

double j,k;

double sum=0;

for(j=1;j<i+1;j++)//Loop for the sum

{

k=j+1;

sum=sum+(j/k);

}

return sum;

}

<u>Output:</u>

Enter number of item in the series-5

sum=3.550000

5 0
2 years ago
```{r}
Stells [14]
Know what your trying to say her input pound 45-94
4 0
3 years ago
____________ occurs when a provider does not support data export or when a provider's service is unavailable through others.
elixir [45]

Answer:

The correct answer to the following question will be Vendor Lock-In.

Explanation:

Vendor Lock-In: It is also known as Customer Lock-In. The Vendor Lock-In makes the costumer depends on services and products on the vendor. The costumers are not able to use another vendor without changing costs as it creates barriers.

Some ways to avoid Vendor Lock-In, these are as follows:

  • Design your application portable.
  • Keep watching vendor contracts.
  • Arrange both entry and exit with your vendor.

8 0
3 years ago
You have a notebook computer and wish to connect to an IEEE 802.11n wireless network. The computer does not have a built-in wire
Ira Lisetskai [31]

Answer:

The wireless adapter to use is the Wireless USB 2.0 Extender

Explanation:

The Wireless USB 2.0 Extender is a USB component that enables a computer to connect to and communicate with other computers on a network, or even to connect to the internet.

It uses an IEEE 802.11g radio platform and communicates within a radio frequency range of 2.4GHz.

Therefore, in cases where a notebook computer does not have a built-in wireless LAN card or PC card interface, you can use the Wireless USB 2.0 Extender as the best solution to that problem.

3 0
3 years ago
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