SOLUTION: If sin θ=1/2, θ in Quadrant I; cos θ. Find the value of the indicated function.

Algebra ->  Trigonometry-basics -> SOLUTION: If sin θ=1/2, θ in Quadrant I; cos θ. Find the value of the indicated function.      Log On


   

Question 1174580: If sin θ=1/2, θ in Quadrant I; cos θ. Find the value of the indicated function.
Answer by ikleyn(52869) About Me  (Show Source):
You can put this solution on YOUR website!
.

If sin%28theta%29 = 1%2F2  and  theta  is the angle of QI,  then theta


is the canonic angle from the Trigonometric Table, and every student MUST know


that  theta = pi%2F6 = 30 degrees  and  cos%28theta%29 = sqrt%283%29%2F2.      ANSWER

Solved, answered and explained.

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Every student must know it, as he (or she) knows the multiplication table.