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Two waves travel simultaneously through the same medium. The first wave is described by y1(x,t) = Acos(kx-ωt) and the second wave by y2(x,t) = B sin(kx-ωt) . If the resulting superposition can be written as y(x,t) = C cos(kx-ωt + π/5) , what is the value of A/B?
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