Wednesday
April 23, 2014

Homework Help: trig-reply to Reiny

Posted by Carol on Monday, January 3, 2011 at 8:36pm.

RE:
(- sin (x/2) /( 2 sin (x/2) + cos (x/2))

is an alternate representation for,

1 / ( 4 tan (x/2) + 2 )

Thanks for your help, sorry I posted 3 times, I thought you didn't understand what I needed. I really do appreciate your time spent.

just for your FYI, if you are interested, see towards the bottom of the link, before the plot, where it says they are equivalent. I guess Wolframe Alpha is wrong... huh, I couldn't quite get it and I'm sure you know more than I.

Arg, It won't let me post a link. Oh well, sorry and thanks again.

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