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[symbol:rot] 3 sin 2x = 1 + cos 2x
trigonometri
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[tex]\sqr{3}\sin(2x)=1+\cos(2x)[/tex]
Benytt:
[tex]\sin(2x)=2\sin(x)\cos(x)[/tex]
og
[tex]\cos(2x)=2\cos^2(x)-1[/tex]
[tex]\sqr{3}\sin(2x)=1+\cos(2x)[/tex]
Benytt:
[tex]\sin(2x)=2\sin(x)\cos(x)[/tex]
og
[tex]\cos(2x)=2\cos^2(x)-1[/tex]
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http://www.youtube.com/watch?v=GzVSXEu0bqI - Tom Lehrer