February 21, 2017

Homework Help: Precalculus

Posted by Anonymous on Saturday, November 9, 2013 at 1:29pm.

I don't understand how rationalizing the numerator of tan(1/2)x=sin x/(1+cos x) results tan(1/2)x=(1-cos x)/sin x. The question is what do you multiply by to the first equation to get the second.

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions