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

Find when this is "0" for the first time:

[tex] q(t) = e^{-20t} (5cos(40t) + \frac{5} {2} sin(40t)) [/tex]

2. Relevant equations

3. The attempt at a solution

[tex] 0 = e^{-20t} (5cos(40t) + \frac{5} {2}sin(40t)) [/tex]

[tex] 0 = (5cos(40t) + \frac{5} {2}sin(40t)) [/tex]

[tex] cos(40t) = -\frac{1} {2}sin(40t)) [/tex]

Is the best way to solve this perform interations?

Thanks

Sparky

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# Homework Help: Solving a Trig Problem - is this iterative only?

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