Answer the following questions, write the "details step by step". Q1. The input-output of a LTI system is expressed as (n + 2)) u(n) system u(n) Determine the input in frequency-domain for which...

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Extracted text: Answer the following questions, write the "details step by step". Q1. The input-output of a LTI system is expressed as (n + 2)) u(n) system u(n) Determine the input in frequency-domain for which system will produce output 8 (n) -) u(n).