Find the value of the following: `cos^(-1)(cos(13pi)/6)`

Find the value of the following: cos^(-1)(cos(13 pi)/(6))

Find the value of the following cos^(-1) (cos 10)

Find the value the following : cos^(-1) (cos . (13pi)/6)

Find the principal values of the following cos^(-1) (cos. (13pi)/6)

Evaluate the following: cos^(-1)((cos(7 pi))/(6))

Evaluate each of the following: cos^(-1)((cos(13 pi))/(6))( ii) cos^(-1)(cos3)( iii) cos^(-1)(cos4)

Evaluate each of the following: cos^(-1){cos(-(pi)/(4))}( ii) cos^(-1)((cos(5 pi))/(4)) (iii) cos^(-1)((cos(4 pi))/(3))

Evaluate each of the following cos^(-1) (cos""(5pi)/(4))

Find the values of the cos^(-1)[cos((4 pi)/(3))]

cos ^ (- 1) ((cos (13 pi)) / (6))