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The wave function of a triangular wave p...

The wave function of a triangular wave pulse is defined by the relation below at time t=0 sec
`y={:(mx,"for "0 le x le a/2),(-m(x-a),fora/2lexlea),(0,every where else):}` The wave pulse is moving in the +x direction in a string having tension T and mass per unit length mu the total energy present with the wave pule is

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