heplmeplz
heplmeplz
14-03-2017
Mathematics
contestada
cos(3x) = cos^2x - 3sin^2x cosx
Respuesta :
LammettHash
LammettHash
14-03-2017
[tex]\cos3x=\cos(2x+x)=\cos2x\cos x-\sin2x\sin x[/tex]
[tex]=(\cos^2x-\sin^2x)\cos x-2\sin^2x\cos x[/tex]
[tex]=\cos^3x-3\sin^2x\cos x[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 84+ )
Otras preguntas
balance them i dont get how
Fast Food ReflectionRead the attached article and reflect on what you read. Ideas are listed below.Things you can discuss after reading the article:What did you
Below is the common equity section (in millions) of Timeless Technology's last two year-end balance sheets: 2013 2012
Why is genetic engineering possible?
Can you answer fast plz
Which side was at fault in the civil war
Use your slope formula to solve form. (5.7) (10. 12)
Heyo someone pls help
What powers do states have/what powers does the federal gov. have/ shared powers
Write the equation of the line in fully simplified slope-intercept form.
