| Line 7: | Line 7: | ||
<math> e^{j2t} + e^{-j2t}\ </math> ----------> System -----------> <math> te^{-2jt} + te^{2jt}\ </math><br><br> | <math> e^{j2t} + e^{-j2t}\ </math> ----------> System -----------> <math> te^{-2jt} + te^{2jt}\ </math><br><br> | ||
| − | The Key to approach this problem is: What is <math> {e^{j2t} + e^{-j2t}\ over 2} </math> | + | The Key to approach this problem is: What is <math> {e^{j2t} + e^{-j2t} \over 2} </math>? |
| − | + | <br> | |
| − | + | ||
Revision as of 07:03, 19 September 2008
Provided that:
(1) $ e^{j2t}\ $ ----------> System ----------> $ te^{-2jt}\ $
(2) $ e^{-j2t}\ $----------> System ----------> $ te^{2jt}\ $
(3) The System is Linear.
The following should hold true:
$ e^{j2t} + e^{-j2t}\ $ ----------> System -----------> $ te^{-2jt} + te^{2jt}\ $
The Key to approach this problem is: What is $ {e^{j2t} + e^{-j2t} \over 2} $?
