Expressing signal as a sum of functions

AI Thread Summary
The discussion revolves around expressing the function V(t) = [2t - 4] u(t) u(4 - t) as a sum of step and ramp functions. Participants clarify that u(t-4) represents a unit step function displaced by four units in time. There is confusion among users regarding how to approach the problem, with one expressing a lack of understanding of the question. Additionally, there is a request for a detailed explanation of the features observable in the function V(t) = 2t. The conversation highlights the challenges faced in understanding and solving the problem related to signal representation.
abcdefhij
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Homework Statement



V(t) = [2t - 4] u(t) u(4 - t)

I need to express this a sum of step and ramp functions.



Homework Equations





The Attempt at a Solution


I have absolutely no idea how to proceed
 
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What is the meaning of this: u(t-4) ?
 
unit step displaced by four units in time, I believe?
 
FOIWATER said:
unit step displaced by four units in time, I believe?
Are you also abcdefhij?
 
No I am not, sorry
 
Sorry

Sorry I have been really busy and unfortunately I was not able to reply to your comments soon
enough. Yes, it is unit step time, and I have no idea how to do the question
 
abcdefhij said:
Sorry I have been really busy and unfortunately I was not able to reply to your comments soon
enough. Yes, it is unit step time, and I have no idea how to do the question

Can you explain in words what features an observer would see in this function: V(t) = 2t

I would need at least 50 words, you may need a few more than that.
 
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