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Multiple angles in terms of arctan and arccos is considered one the most difficult concept.
20 Questions around this concept.
Considering only the principal values of inverse trigonometric functions, the number of positive real values of x satisfying $\tan ^{-1}(x)+\tan ^{-1}(2 x)=\frac{\pi}{4}$ is :
Multiple angles in terms of arcsin
Multiple angles in terms of arccos
Multiple angles in terms of arctan and arcsin

Multiple angles in terms of arctan and arccos
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Mathematics for Joint Entrance Examination JEE (Advanced) : Trigonometry
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Mathematics for Joint Entrance Examination JEE (Advanced) : Trigonometry
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Mathematics for Joint Entrance Examination JEE (Advanced) : Trigonometry
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Mathematics for Joint Entrance Examination JEE (Advanced) : Trigonometry
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July 04, 2019
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