Help with sketching the signal

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TorrieTTT

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I've been trying to solve the question but am not getting the desired answer.
I tried separating the components and solving but still no luck. Plese help.

 
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I've been trying to solve the question but am not getting the desired answer.
I tried separating the components and solving but still no luck. Plese help.

View attachment 171730
put values from -6 to 6 in n and change value of k according to n. x[-6]=4 ,x[-5]=2,and change values by simply puting values in question.
 

Hi,

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Mind that edaboard is an international forum and there are regions with low internet bandwidth

Generally it´s no good idea to take a high resolution photo from a computer monitor. It just gives huge file size with low quality. Better use the screenshot buttons of your keyboard (or other OS screenshot functions) and use .PNG file format.
 

put values from -6 to 6 in n and change value of k according to n. x[-6]=4 ,x[-5]=2,and change values by simply puting values in question.
This is my guess attempt:

Code:
clc;clear;
for n = 0:12
    sum = 0;
    for k = -6:5
        if n < 3*k
            u1 = 0;
        else
            u1 = 1;
        end
        if n < 4+3*k
            u2 = 0;
        else
            u2 = 1;
        end
        sum = sum + (u1 - u2);
    end
    y(n+1) = 2*sum;
end

x = -6:6;
stem(x,y)
 

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