(A) Find `cos^-1(cos(( 7pi)/6))`

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

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

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

Evaluate each of the following: sin^(-1)(sin(2pi)/3) (ii) cos^(-1)(cos(7pi)/6) (iii) tan^(-1)(tan(3pi)/4)

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

Find the principal values of the following : (i) sin^(-1)(sin.(5pi)/(3)) (ii) cos^(-1)cos((4pi)/(3)) (iii) cos [(pi)/(3) + cos^(-1) (-(1)/(2))]

Write the principal value of, cos^(-1)\ (cos(7pi)/6)

Evaluate the following: 1. sin^(-1)(s i n(2pi)/3) 2. cos^(-1)(c o s(7pi)/6) 3. tan^(-1)(t a n(2pi)/3)

Find the principal value of the following (i) cos^(-1) (cos 3) (ii) cos^(-1) (cos 4) (iii) cos^(-1) (cos 15) (iv) cos^(-1) (cos 30) (v) cos^(-1) (cos 50) (vi) cos^(-1) (cos.(48pi)/(7))

Let m be the number of solutions of sin(2x)+cos(2x)+cosx+1=0 in 0 lt x lt (pi)/(2) and n = sin [tan^(-1)(tan((7pi)/(6)))+cos^(-1)(cos((7pi)/(3)))] , then find the value of (m^(2)+n^(2)+m+n+4)