signal and system

I salute the entire community. I have a question like this, I've been trying for days, but I just couldn't figure out how to get to the right conclusion. it feels very complicated. if he who knows his logic and what should be how can explain it, he will be received with honor by the community...

i salute the community. the frequency spectrum of the signal given in the red square here expresses that it is solved in the following way. but everything is so complicated. i mean, I can't figure out why we're doing what we're doing. is there a way to make this more understandable? can you...

i salute the entire community! below is a phasor diagram ; a point got stuck in my head when the signal and systems were working where I indicated with the red arrows, these arrows are always 0 -> 90 -> 180 -> 270 -> 360 is this happening because he is following in his form? or do these...

i salute the community! while continuing my work on signals and systems, I got stuck at a point. . the chart below : sin(80nt), that is, it belongs to [sin(80\pi t)]. What happens to the phase graph when the signal sin(80πt) is multiplied by -j? I know that j causes a +90° phase...

i salute the whole community! in signals and systems, I'm learning things about the phasor drawing of the given sinusoidal signs. when researching on the Internet, the negative phases are counterclockwise i came across articles that the positive phases are clockwise. but when you do it with...

I have trouble solving the following question related to signals and systems, and I need to plot its graph: (2t/5) * [u(t) - u(t-6)] The tools provide a solution, but I want to understand the logic behind how it is plotted. If anyone knows and can help, it would be greatly appreciated. thanks..