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25-09-2021 Signals & Systems

Q. What are the tools used in a graphical method of finding convolution of discrete time signals?

A. Plotting, shifting, folding, multiplication, and addition in order
B. Scaling, shifting, multiplication, and addition in order
C. Scaling, multiplication and addition in order
D. Scaling, plotting, shifting, multiplication and addition in order


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Dapzoi Verified
Commented on 2021-09-25 13:04:44 (IST)
Answer: A

Explanation: The tools used in a graphical method of finding convolution of discrete time signals are basically plotting, shifting, folding, multiplication and addition. These are taken in the order in the graphs. Both the signals are plotted, one of them is shifted, folded and both are again multiplied and added.