I can't get my answer match up with correct answer in the book:(adsbygoogle = window.adsbygoogle || []).push({});

i need to find fundamental period of this signal:

x(t) = 2 cos(10t + 1) - sin(4t -1)

i used formula for cosine Acos(wt + a) = ... that gives two exponentials... so I got pi/10 instead of pi for answer...

any help is appreciated

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# Homework Help: Fundamental period

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