Inverse Trigonometric Functions

Bihar Board Class 12 · Mathematics · 106 past questions

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1. Q35 2025

   If $\cos^{-1}\alpha + \cos^{-1}\beta + \cos^{-1}\gamma = 3\pi$, then find the value of…

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2. Q36 2025

   Solve the equation $\cos(\tan^{-1}x) = \sin\left(\cot^{-1}\frac{3}{4}\right)$.

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3. Q37 2025

   Prove that $\sin^{-1}\frac{5}{13} + \cos^{-1}\frac{3}{5} = \tan^{-1}\frac{63}{16}$.

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