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prove the answer below in matlab. please post the code. not the handwritten answer. thank you, ill give postive like when compete. 1. Calculate the

prove the answer below in matlab. please post the code. not the handwritten answer. thank you, ill give postive like when compete.

1. Calculate the first three samples of a 20 point DFT of h(n). h(n) is equal to 0.25 for samples 0-3 and 0 for the remaining necessary samples. You must show your work to receive credit for this question. (6 marks)

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