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Solve the following question given below:

Question: Two waves are superposing

y1 = (3 cm) sin [8.0/m x + 2.0/s t],

y2 = (3 cm) sin [8.0/m x - 2.0/s t]

Part A: What is the angular frequency?

Part B: Write down the equation for the resultant wave?

Could someone please show me the work and explain how to get the answer. Thanks.

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