JEE Main 2013Session, Shift 1MathematicsEasyTrigonometry118× since 2002The expression tanA1−cotA+cotA1−tanA{{\tan {\rm A}} \over {1 - \cot {\rm A}}} + {{\cot {\rm A}} \over {1 - \tan {\rm A}}}1−cotAtanA+1−tanAcotA can be written as:AOption A. sinA cosA+1\sin {\rm A}\,\cos {\rm A} + 1sinAcosA+1BOption B. secA cosecA+1\,\sec {\rm A}\,\cos ec{\rm A} + 1secAcosecA+1COption C. tanA+cotA\tan {\rm A} + \cot {\rm A}tanA+cotADOption D. secA+cosecA\sec {\rm A} + \cos ec{\rm A}secA+cosecACheckSkip · show solution
