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lala2Best ResponseYou've already chosen the best response.0
use unit circle and 30 60 90 triangles to find the values in degrees of each expression cos^1 (sqrt3)/2
 10 months ago

lala2Best ResponseYou've already chosen the best response.0
@chrisplusian help me please
 10 months ago

satellite73Best ResponseYou've already chosen the best response.0
do you have a copy of the triangle?
 10 months ago

satellite73Best ResponseYou've already chosen the best response.0
then you need one !
 10 months ago

lala2Best ResponseYou've already chosen the best response.0
do you mean the sheet you gave me
 10 months ago

satellite73Best ResponseYou've already chosen the best response.0
http://www.freemathhelp.com/triangle306090.html
 10 months ago

chrisplusianBest ResponseYou've already chosen the best response.1
I would set \[y=\cos^{1}(\frac{ \sqrt{3} }{ 2 })\] if you take the cosine of both sides you get \[\cos(y)=\frac{ \sqrt{3} }{ 2 }\] cos is the x value in the unit circle.so the cosine value =\[\frac{ \sqrt{3} }{ 2 }\] at \[\frac{ \pi }{ 6 }\] or 30 degrees
 10 months ago
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