J Joe New member Feb 17, 2011 #1 Prove that for real x and y, |sin(x + iy)|^2 = sin^2(x) + sinh^2 I guess I need to use sin(z) = [exp(z) - exp(-z)] / 2i but just can't get it to work out.
Prove that for real x and y, |sin(x + iy)|^2 = sin^2(x) + sinh^2 I guess I need to use sin(z) = [exp(z) - exp(-z)] / 2i but just can't get it to work out.
