Find the principal value of: i) `sin^(-1)(sqrt(3)/2)` ii) `sin^(-1)(1/2)` iii) `cos^(-1)(1/2)` iv) `tan^(-1)(1)` v) `tan^(-1)(1/sqrt(3))` vi) `sec^(-1

Monjur Alahi

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


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Salim Ahmed Kawsar

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Correct Answer - i) `pi/3`, ii) `pi/6`, iii) `pi/3`, iv) `pi/4`, v) `pi/6`, vi) `pi/6`, vii) `pi/4`.

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