Inverse Trigonometric Functions
RS Aggarwal
CBSE
Grade 12
Question:
Simplify $\tan^{-1}\left(\sqrt{\dfrac{1 - \cos x}{1 + \cos x}}\right), 0 < x < \pi$.
Step-by-Step Solution
Key Concept: tan^{-1}(\sqrt{tan^2(x/2)}) = x/2.
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Correct Answer:
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