निम्नलिखित के मुख्य मान ज्ञात कीजिए।
(i) `sin^(-1)""(1)/(2)` (ii) `tan^(-1)""(1)/(sqrt3)`
(iii) `cot^(-1)(-sqrt3)`

Explanation

(i) `sin^(-1)""(1)/(2)=sin^(-1)""(sin""(pi)/(6))=(pi)/(6)`
(ii) `tan^(-1)""(1)/(sqrt3)=tan^(-1)(tan""(pi)/(6))=(pi)/(6)`
(iii) `cot^(-1)(sqrt-3)=pi-cot^(-1)(sqrt3)=pi-cot^(-1)(cot""(pi)/(6))=pi-(pi)/(6)=(5pi)/(6)`