Class 11

14. Inverse Trigonometric Functions question bank (Maths)

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Q1.

The principal value of \( \sin^{-1} \left( \frac{-\sqrt{3}}{2} \right) \) is  

(A)
\( -\frac{2\pi}{3} \)
(B)
\( -\frac{\pi}{3} \)
(C)
\( \frac{4\pi}{3} \)
(D)
\( \frac{5\pi}{8} \)
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Q2.

\( \sec^{-1}[\sec(-30^\circ)] = \)  

(A)
\( -60^\circ \)
(B)
\( -30^\circ \)
(C)
\( 30^\circ \)
(D)
\( 150^\circ \)
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