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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def sinLdot_fc(tfdata, pfdata):
 """Apply sin of theta times the L operator to the data in the Fourier domain."""

    
    dphi_fc(tfdata)
    
    sin_fc(pfdata)
    dtheta_fc(pfdata)
    
    return 1j * (tfdata - pfdata)