MathematicsEasy66×since 2002Q4073cos−1(cos(−5))+sin−1(sin(6))−tan−1(tan(12)){\cos ^{ - 1}}(\cos ( - 5)) + {\sin ^{ - 1}}(\sin (6)) - {\tan ^{ - 1}}(\tan (12))cos−1(cos(−5))+sin−1(sin(6))−tan−1(tan(12)) is equal to : (The inverse trigonometric functions take the principal values)A3π\piπ −-− 11B4π\piπ −-− 9C4π\piπ −-− 11D3π\piπ + 1Check answerSkip