MathematicsEasy45×since 2004Q5643The 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:AsinA cosA+1\sin {\rm A}\,\cos {\rm A} + 1sinAcosA+1B secA cosecA+1\,\sec {\rm A}\,\cos ec{\rm A} + 1secAcosecA+1CtanA+cotA\tan {\rm A} + \cot {\rm A}tanA+cotADsecA+cosecA\sec {\rm A} + \cos ec{\rm A}secA+cosecACheck answerSkip