Question

help!!!!!!!!!!!!!!!!!!!!!

Answer 1

use unit circle and 30 60 90 triangles to find the values in degrees of each expression cos^-1 (sqrt3)/2

Answer 2

@chrisplusian help me please

Answer 3

do you have a copy of the triangle?

Answer 4

no i dont

Answer 5

then you need one !

Answer 6

how do i get it

Answer 7

do you mean the sheet you gave me

Answer 8

i have that

Answer 9

http://www.freemathhelp.com/triangle-30-60-90.html

Answer 10

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

Answer 11

thank you!