I have a question asking for the period, frequency, amplitude and phase angle from simply looking at a graph. I have the period and frequency, and 'think' i have the amplitude (high point - low point / 2), but I don't know how to get the phase angle. No equation is given so I can't simply consider the coefficients in front of sin and cos.(adsbygoogle = window.adsbygoogle || []).push({});

Can anyone point me in the right direction?

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# Finding amplitude and phase angle from a graph?

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