algebra 2
posted by brittany .
find the exact value using the unit circle cos 3.14/6

algebra 2 
Steve
If you want exact values, you should say cos pi/6 = √3/2
Can't give the exact value of cos 3.14/6
Respond to this Question
Similar Questions

math
Find the exact value of cos 300 degrees. thanks guys cos 300 = 1/2 = 0.500 how do you know? 
Math
1. Find the value of Sin^1(1/2) a. 30 degrees b. 30 degrees c. 150 degrees d. 330 degrees 2. Find the exact value of cos(420 degrees) a. 1/2 b. 1/2 c. sqrt of 3/2 d. sqrt of 3/2 3. p(9/41, 40/41) is located on the unit circle. … 
MATH
1.)Find the exact solution algebriacally, if possible: (PLEASE SHOW ALL STEPS) sin 2x  sin x = 0 2.) GIVEN: sin u = 3/5, 0 < u < ï/2 Find the exact values of: sin 2u, cos 2u and tan 2u using the doubleangle formulas. 3.)Use … 
trig
suppose that sin(x) + cos(x) = 4/3 a)square this result and find a value for sin(x)cos(x). b)using the result from a) find the exact value of sin^3(x)+cos^3(x). (Hint: Do you recall how to factor x^3 + y^3) 
Algebra 2 Honors
Find the exact value by using an appropriate sum or difference identity. cos(165) degrees 
Algebra II
Could someone please help me or direct me where to get help What is the exact value of cos 60 as found on the unit circle? 
Math
For value cos (8ð/3). b) write cos (8ð/3) in terms of an algebraic sign and cosine of the reference angle find the exact value of what you found in part b using a cheating chart. no decimals please 
Algebra II
Multiple Choice (theta) means the symbol 0 with the dash in it. 1.)Which expression is equivalent to tan(theta)(sec(theta))/(sin(theta))? 
Math Trig
1. Determine the exact value of cos^1 (pi/2). Give number and explanaton. 2. Determine the exact value of tan^1(sq. root 3). with explanation. 3. Determine exact value of cos(cos^1(19 pi)). with explanation. 4. Determine the exact … 
math
the point P(x, 2/3) lies on the unit circle and is in quadrant 4. a) sketch the unit circle showing the point P and the principal statndard position angel theta drawn to the terminal arm containing point P. b) determine the exact …