A Trig ID simplification problem. I know the answer, can you help me understand the steps undertaken to reach it? I'll put the expressions in the next box...

Question

A Trig ID simplification problem.  I know the answer, can you help me understand the steps undertaken to reach it?  I'll put the expressions in the next box...

anonymous · Answer

$$(sinxsinx−(1−cosx)(cosx))/(sinx)2=(1−cosx)/(sinx)2$$

anonymous · Answer

Let's say you got the LHS and wanted to simplify it.  My textbook suggests the RHS.  The first steps they took to get there are not jumping out at me.  Any thoughts to nudge me along?

anonymous · Answer

Hi. c: Gotta go, though. . . It's late. I'll leave you with this - hope it helps. http://tutorial.math.lamar.edu/pdf/Trig_Cheat_Sheet.pdf

kira_yamato · Answer

Hope this helps...

anonymous · Answer

Excellent help, Kira.  Thank you.