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The value of cot`[sin^(-1){cos(tan^(-1)1)}]` isA. `2/3`B. `sqrt(12)/(3)`C. `(1)/sqrt(2)`D. `sqrt(3)/(2)` |
Answer» `sin[cot^(-1){cos(tan^(-1)1)}]` `sin{cot^(-1)(cos(pi)/(4))}` `=sin(cot^(-1)(1)sqrt(2))` `=sin(sin^(-1)sqrt(2)/sqrt(3))=sqrt(2/3)"before"^(-1)(1)/(sqrt(2)=sin^(-1)sqrt(2)/sqrt(3)]` |
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