I"m really confused, I don't understand how to get the exact real value of
Stacey Warren - Expert brainly.com
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arccos = cos^-1 = inverse cos
yeah frag it.... 60 deg.
thanks guys, but my only answer choices are pi over certain numbers
oh okay thanks
60 deg * pi/180 deg= pi/3
what steps did you take to figure that out? @mathstudent55
A cosine value of 1/2 is well known because it comes from the 30-60-90 triangle. Since you needed arccos 1/2, that means you are looking for the angle whose cosine is 1/2. Using the triangle I drew, you can see that the angle is 60.
Then you said all answers have pi in them, that means they are asking fir an answer in radians, not degrees. To convert degrees to radians, you multiply the degrees by pi/180. So 60 degrees = 60 * (pi/180) radians = pi/3 radians