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Add two cosine waves with the same amplitude and different frequencies. Describe
your resultant wave. What is this phenomena called?

3. Add two cosine waves with the same amplitude and different frequencies. Describe
your resultant wave. What is this phenomena called?
(Hint: You may use the following trigonometric equation).
cos a + cos ß = 2 cos (a + B)cos;(æ – ß)

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