vis at
sin 2x / 1 + cos 2x = tan x[/url]
trigonometri
Moderators: Aleks855, Gustav, Nebuchadnezzar, Janhaa, DennisChristensen, Emilga
Hint:
[tex]\sin(2x)=2\sin(x)\cos(x)[/tex]
[tex]\cos(2x)=2\cos^2(x)-1[/tex]
[tex]\sin(2x)=2\sin(x)\cos(x)[/tex]
[tex]\cos(2x)=2\cos^2(x)-1[/tex]
The square root of Chuck Norris is pain. Do not try to square Chuck Norris, the result is death.
http://www.youtube.com/watch?v=GzVSXEu0bqI - Tom Lehrer
http://www.youtube.com/watch?v=GzVSXEu0bqI - Tom Lehrer