hello, can someone please show me how the roots of z tan z = k , where k > 0 are real is solved. what i have done; z tan z = by Euler equations would appreciate some help solving this thanks guys
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The first thing I would do is get the denominator real by multiplying numerator and denominator by the conjugate, -i (note that e^{iz}+ e[sup]-iz[/itex] is a real number because it is equal to its conjugate).
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