[" 11नों को जात कोजिए: "],[" 2.cos "^(-1)((sqrt(3))/(2))]

cos^-1[sqrt3/2]

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

sin^(-1)(-(sqrt(3))/(2))+cos^(-1)((sqrt(3))/(2))

Simplify tan[(1)/(2)cos^(-1)((3)/(sqrt(11)))]

evaluate tan[(1)/(2)cos^(-1)((3)/(sqrt(11)))]

4 cos^(2)x + sqrt(3) = 2(sqrt(3)+1)

Prove that : cos^(-1) x + cos^(-1) ((x)/(2) + (sqrt( 3-3x^2) )/( 2) ) = (pi)/ (3)

Prove that : cos^(-1) x + cos^(-1) ((x)/(2) + (sqrt( 3-3x^2) )/( 2) ) = (pi)/ (3)

Prove that : "cos"^(-1)sqrt((2)/(3))-"cos"^(-1)(sqrt(6)+1)/(2sqrt(3))=(pi)/(6)

For the principal values,evaluate each of the following: sin^(-1)(-(1)/(2))+2cos^(-1)(-(sqrt(3))/(2))( ii) sin^(-1)(-(sqrt(3))/(2))+cos^(-1)((sqrt(3))/(2))