(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

[tex]y=e^{-t}Cos(t)+e^{-t}Sin(t)[/tex]

Find the smallest T such that |y(t)| < 0.1 for t > T

2. Relevant equations

none

3. The attempt at a solution

This question is actually a second part to a differential equations problem, the equation above being my correct solution to a second order linear equation. Now, in my attempt to solve this part, I am stuck because I am not sure what T is (as opposed to t). You have all the info the book has given me so does anyone know what T may be referring to?

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# Differential Equation book question

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