hi everyone i like math and physics

samsanch0803
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How did you find PF?
from the web looking for an explanation of my homework
math.png
 
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Welcome to PF. :smile:

I see one small mistake in the middle of your work, but I'll leave that as an exercise for you to figure out where it is. :wink:
 
Welcome to PF.
 
I am retired with a scientific background in Mathematics and Physics though I quit Academia after graduation. Recently, my interest has revived and I have started to review what I knew before and learn new stuff. My interests are in Physics and Mathematical Physics. I hope I can find answers to some of my questions here and perhaps in the future, I can also answers some questions. How have I arrived here? During the past two months, I have been doing some online research to find the best...