Find the principal value of ltrbgt (a) `cosec^(-1) (-1)` (b) `cot^(-1) (-(1)/(sqrt3))`

Find the principal value of (a) cosec^(-1) (-1) (b) cot^(-1) (-(1)/(sqrt3))

Find the principal value of (a) cosec^(-1) (-1) (b) cot^(-1) (-(1)/(sqrt3))

Find the principal value of (a) cosec^(-1) (-1) (b) cot^(-1) (-(1)/(sqrt3))

Find the principal values of the following : cosec^(-1)(-1)

Find the principal value of cot^-1(sqrt3)

Find the principal value of cot^-1(-sqrt3)

Find the principal value of the following: (i) cosec^(-1)(2) (ii) tan^(-1) (-sqrt3) (iii) cos^(-1) (-(1)/(sqrt2))

Find the principal value of the following: (i) cosec^(-1)(2) (ii) tan^(-1) (-sqrt3) (iii) cos^(-1) (-(1)/(sqrt2))

Find the principal value of the following: (i) cosec^(-1)(2) (ii) tan^(-1) (-sqrt3) (iii) cos^(-1) (-(1)/(sqrt2))