Question

How would I find the real and imaginary components of [(exp(int)-1]/[exp(it)-1]?

Answer 1

I'm using t instead of theta cos I cant do formatting on here, thats meant to be e^(i*theta*n). From what I remember, I need to multiply by a something so the denominator becomes real, but I'm not sure what

Answer 2

yes make the denominator without i for this what you need to do ? - you need multiplie the numerator and denominator by conjugat of denominator

do you know what mean ,,conjugat of " ?

Answer 3

\( \dfrac{e^{i ( n t)}-1}{e^{i~t}-1}\)


so jonny, show us the conjugate of this denominator

we all know what conjugate means, but show us what it is in this case?