What to memorize for QR?

[Jo07]

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Do we have to know all those trig identites and whatnot?
Also, permutation formulas-- all of the variations?

Any advice from you all who have taken it to someone that sucks at math? 😕

 

[Mstoothlady2012]

http://forums.studentdoctor.net/showthread.php?t=143377&highlight=math+formulas

I dont think you need to memorize every single formula...but the ones that you see more often.