Prove that: tg20.tg40.tg60.tg80 = 3

Trigonometry equalities, inequalities and expressions - sin, cos, tan, cot

Prove that: tg20.tg40.tg60.tg80 = 3

Postby Math Tutor » Mon Dec 21, 2009 11:50 am

Prove the that
tg20.tg40.tg60.tg80 = 3
Math Tutor
Site Admin
 
Posts: 411
Joined: Sun Oct 09, 2005 11:37 am
Reputation: 28

Re: Prove that: tg20.tg40.tg60.tg80 = 3

Postby mrmohamed » Sat Jan 09, 2010 5:53 am

teacher wrote:Prove the that
tg20.tg40.tg60.tg80 = 3

Hello
Image

Teacher Of Math
User avatar
mrmohamed
 
Posts: 1
Joined: Fri Jan 08, 2010 7:39 pm
Location: Egypt - Assuit
Reputation: 0


Return to Trigonometry - sin, cos, tan, cot, arcsin, arccos, arctan, arccot



Who is online

Users browsing this forum: No registered users and 2 guests