Find the principal value of `sin^(-1)``(1/(sqrt(2)))`

Find the principal value of sin^(-1) (1/2)

Find the principal value of Sin(-1/2)

Find the principal value of sin^(-1)(1/sqrt2)

Find the principal value of "sin^(-1)(1/sqrt2).

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

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

Find the principal value of sin^(-1)(-1/sqrt2) .

Find the principal value of: i) sin^(-1)(-1/sqrt(2)) , ii) cos^(-1)(-sqrt(3)/2) iii) tan^(-1)(-sqrt(3)) iv) sec^(-1)(-2) v) "cosec"^(-1)(-sqrt(2)) , vii) cot^(-1)(-1/sqrt(3)) .