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Does exponential take over cosine?

  • Thread starter EvLer
  • Start date
  • #1
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If i have a response for a circuit that consists of: cos(t) + e-t + e3tand if I let t->infinity, does exponential "over-take" cos(t)?
well, the actual question is whether the output/response remains finite as t->infinity...

thanks, as always :smile:
 
Last edited:

Answers and Replies

  • #2
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maybe i'm misunderstanding you but...
lim t-> infinity cos(t) + e^-t + e^3t = infinity
 
  • #3
HallsofIvy
Science Advisor
Homework Helper
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You are aware, are you not, that cos(x) is never larger than 1? It doesn't take much for any function to "overtake" (which is not the same as "take over"!) cos(x).
 

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