Wednesday
April 16, 2014

Homework Help: Trig

Posted by Carol on Monday, January 3, 2011 at 3:58pm.

Could someone please show me how
1 / ( 4 tan (x/2) + 2 )

is converted to:
(- sin (x/2) /( 2 sin (x/2) + cos (x/2))

TIA
Carol

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