I was going to post this in the learning material section but i didnt have access to it for some reason. but i guess i can post it here. its homework after all. so i have noticed that there is almost nothing learning material on fourer transform on the web. like how to transform a function to Fourier with tricks like time shift, scaling, complex conjugating and by integral and also inverted Fourier transform. is there any khan like videos/text that show examples on how to fourier-transform with these tricks and by integral. or can someone show me some examples of time shiffting ect.