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Two traveling waves on same string with equations: (@ - phase constant) y1(x,t) = (3.41cm) sin(k1x...

Two traveling waves on same string with equations: (@ - phase constant)

y1(x,t) = (3.41cm) sin(k1x + (.208 rad/s)t + @1)

y2(x,t) = (3.78cm) sin(k2x - (8.26 rad/s)t +@2)

What are the smallest positive values of the unknown phase constants such that the max displacement occurs at x=0, t=2.01? (max displacement = 7.19)

Please explain answer for @2

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