I have two waves in a string. One of them is given below, where x is in cm and t is in seconds.(adsbygoogle = window.adsbygoogle || []).push({});

[tex]y=40cos\frac{\pi}{4}\((0.5x-4t-0.4)[/tex]

I have to find second to produces standing waves when added to the first wave. I know how to add two waves were they are given. Can I get hint on this one. Thanks

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# Standing waves

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