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Question: important please ignore d i need a help for a...

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9. The methods used in this problem will be used later in the semester when finding the response of a network to ac inputs. Do the following: a. Sketch X,(1) = 40s(21) Label your sketch with its identifier (,) and extrema, b. Sketch xs(1)-3sin(21). Label your sketch with its identifier and extrema. c. Sketch x()-4cos(21)+3sin(21) by adding corresponding points from the first two sketches. Label your sketch with its identifier and extrema. d. Describe your sketch ofx() verbally in the space to the right. Your answer should be clear, complete, and concise. Write an alternative expression for x () -5 t (s)

important!!!!!!!!!!!!!!

Please ignore (d).

I need a help for (a), (b), (c), and (e).

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