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A travelling wave pulse is given by y=(...

A travelling wave pulse is given by `y=(4)/(3x^(2) +48t^(2) + 24 xt + 2)` where x and y are in metre and t is in second. The velocity of wave is

A

4 m/s

B

2 m/s

C

8 m/s

D

12 m/s

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