What is the exact solution of cos (17pi/6) ?

The exact solution of cos (17 π / 6) is as follows:

First change the angle into degrees.

17 (π/6) (180°/π) = 510°

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

cos 510° = - (√3) / 2

Hope this answers the question. Have a nice day.