Hello,
I am attempting and a bit stuck question on page 113 from the book: Fourier series by W.Bolton. Determine the magnitude for the following Fourier transform:
\(\frac{1}{1+j\varpi}\) Equation 1
To determine the magnitude the normal process is to seperate the real and complex and the apply pythagoras thereom.
[Fω] = \(\sqrt{(\frac{1}{1+\varpi^{2}})^{2}+(\frac{-\varpi}{1+\varpi^{2}})^{2}}\) Equation 2
I dont quite know how it equals this :
\(\frac{1}{\sqrt{1+\varpi^{2}}}\) Equation 3
I can not get from equation 2 to equation 3. The best I can do is this, even this has not got the square root applied:
\(\frac{1+\varpi^{2}}{1+2\varpi^{2}+\varpi^{4}}\)
I just want a hint, Is it partial fractions I have to look at or is there another way.
Thank you in advance
PS: I dont know where the omega sign is, the one I have has a line above it
I am attempting and a bit stuck question on page 113 from the book: Fourier series by W.Bolton. Determine the magnitude for the following Fourier transform:
\(\frac{1}{1+j\varpi}\) Equation 1
To determine the magnitude the normal process is to seperate the real and complex and the apply pythagoras thereom.
[Fω] = \(\sqrt{(\frac{1}{1+\varpi^{2}})^{2}+(\frac{-\varpi}{1+\varpi^{2}})^{2}}\) Equation 2
I dont quite know how it equals this :
\(\frac{1}{\sqrt{1+\varpi^{2}}}\) Equation 3
I can not get from equation 2 to equation 3. The best I can do is this, even this has not got the square root applied:
\(\frac{1+\varpi^{2}}{1+2\varpi^{2}+\varpi^{4}}\)
I just want a hint, Is it partial fractions I have to look at or is there another way.
Thank you in advance
PS: I dont know where the omega sign is, the one I have has a line above it