4.cos^(-1)(-(1)/(sqrt(2)))

For the principal value,evaluate tan^(-1)(-1)+cos^(-1)(-(1)/(sqrt(2)))

Find the principal values of the following. cos^(-1) (-(1)/(sqrt(2)))

Find the principal value of: cos^(-1)(-(1)/(sqrt(2)))

Find the principal value of each of the following : cos^(-1)(-(sqrt(3))/(2))( ii) cos^(-1)(-(1)/(sqrt(2)))

Find the principal of : (1) sin ^(-1)((1)/(2)) (2) tan^(-1)(-sqrt(3)) (3) cos^(-1)(-(1)/(sqrt(2))) (4) sin^(-1)(-(1)/(2)) .

cos^(-1)((1)/(sqrt(2)))+sec^(-1)(-sqrt(2))

Find the principal value of the following: cos^(-1)(-1/(sqrt(2)))

Find the principal value of: cos^(-1)(-1/(sqrt(2)))

Find the principal value of the following: (i) tan^(-1) (-sqrt3) (i) cos^(-1) (-(1)/(sqrt2))