The question I need to answer is what is the period of that function. The equation I know for period is $T = \frac{2\pi}{f}$ but I don't know how to figure out the frequency in that function. Looking at the graph of this function it seems the period is $7\pi$.
2026-04-04 00:37:42.1775263062
How do I determine the frequency of $x(t) = 9\cos(2t) + 4\sin(\pi t)$
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