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compute graph sequence

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scdoro

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Hi all,

i am new to Matlab.Could anyone help me to generate and plot the below 3 sequences using Matlab "stem" function

qn1) What should i define in my script?
qn2) how do i obtain the fundamental period by just observing the graph?

x1[n]=sin(0.6Пn+0.6П)
x2[n]=sin(0.68Пn)
x3[n]=3sin(1.3Пn)-4cos(0.3Пn+0.45П)

thanks alot
 

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