" 5."quad (i)cos^(-1)(cos(4 pi)/(3))

cos^(-1)(cos(5 pi)/(3))=

cos^(-1) (cos ((4pi)/3))

cos^(-1)(cos((5 pi)/(4)))

cos^(-1) (cos ((5pi)/3))=

Find cos ^(-1) (cos ((4pi)/3))

cos^-1(cos(5pi/3))

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

" (i) "cos^(-1){cos(-(pi)/(4))}