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Prove the followingresults:`tan(sin^(-1)(15)/(13)+cos^(-1)3/5)=(63)/(16)`(ii) `sin(cos^(-1)3/5+sin^(-1)5/(13))=(63)/(65)`A. `48/65`B. `15/65`C. `33/65`D. `63/65` |
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Answer» `sin(cos^(-1)3/5+cosec^(-1)13/5)` `=sin(cos^(-1)3/5)cos(cosec^(-1)13/5)+cos(cos^(-1)3/5)` `sin(cosec^(-1)13/5)` `=sin(sin^(-1)4/5)cos(cos^(-1)12/13)+cos(cos^(-1)3/5)sin(sin^(-1)5/13)` `4/5xx12/13xx3/5xx5/13=63/65` |
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