Please explain how to find the X & Y components for this figure!?

A

ace

New member
I have a midterm tomorrow, & don't understand how the professor got the x or y components for this figure. If you could please explain how to get the components(for EVERY force included/ why its sin or cos), that'd be great. THANK YOU!

http://i3.photobucket.com/albums/y55/freakydutchman1/Screenshot2011-02-22at112211PM.png
 
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