Question: how can I plot an expression involving and imaginary number

 I wand to plot the following expression involving an imaginary number. Can I get some help??

 

((1/10)*exp((2/135)*sqrt(-11)*sqrt(225)*t-(2/3*I)*x+1/15)/((3/10)*exp((2/135)*sqrt(-11)*sqrt(225)*t-(2/3*I)*x+1/5)

 

 

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