Question

Find an exact value: cos(pi/12)

Answer 1

c. SQRT6+SQRT2/4

Explanation:

EDGE

C

QUIZ.

Answer 2

The exact solution of cos(pi/12) is as follows:

First change the angle into degrees.

(π/12) (180°/π) = 15°

Then we calculate the cosine of the angle above and it as follows:

cos 15° = (√6 + √2) /4

Hope this answers the question. Have a nice day.