MathematicsEasy66×since 2002Q4080Considering only the principal values of inverse trigonometric functions, the number of positive real values of xxx satisfying tan−1(x)+tan−1(2x)=π4\tan ^{-1}(x)+\tan ^{-1}(2 x)=\frac{\pi}{4}tan−1(x)+tan−1(2x)=4π is :Amore than 2B2C0D1Check answerSkip