anonymous
  • anonymous
Why is f(t)= 5t-2*cos(5000*pi*t) not periodic? Does it not stay at amplitude 2 to-2 and oscillates forever?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
But because of that t, The amplitude can vary.
anonymous
  • anonymous
the 5t?
anonymous
  • anonymous
Your amplitude is (5t-2) right?

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anonymous
  • anonymous
nono
anonymous
  • anonymous
5t-(2cos(5000*pi*t))
anonymous
  • anonymous
sorry for the confusion
anonymous
  • anonymous
I guess the 5t changes the amplitude everytime
zepdrix
  • zepdrix
Yah so the cosine part is doing the wave. Back and forth back and forth, periodic yes. But then the 5t is linear, causing the wave to move upward.
anonymous
  • anonymous
That 5t causes a vertical pellet thought depending on the value of t.
anonymous
  • anonymous
shift*
anonymous
  • anonymous
so periodic it has to be a constant pattern can't keep changing
anonymous
  • anonymous
I see it now thanks for your guys' help wish I could give both of you best answers
zepdrix
  • zepdrix
Yah periodic would mean it REPEATS. Yes the PATTERN is repeating, but the values are not. The values keep getting larger and larger. I can see how that might be confusing though :)
anonymous
  • anonymous
Yeah gotcha thanks a lot man!

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