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lala2
 one year ago
Best ResponseYou've already chosen the best response.0use unit circle and 30 60 90 triangles to find the values in degrees of each expression cos^1 (sqrt3)/2

lala2
 one year ago
Best ResponseYou've already chosen the best response.0@chrisplusian help me please

satellite73
 one year ago
Best ResponseYou've already chosen the best response.0do you have a copy of the triangle?

satellite73
 one year ago
Best ResponseYou've already chosen the best response.0then you need one !

lala2
 one year ago
Best ResponseYou've already chosen the best response.0do you mean the sheet you gave me

chrisplusian
 one year ago
Best ResponseYou've already chosen the best response.1I 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
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