Class CBSE Class 12 Mathematics Inverse Trigonometric Functions Q #1671
KNOWLEDGE BASED 1 Marks 2026 AISSCE(Board Exam) MCQ SINGLE
The principal value of $\sec^{-1}(\sqrt{2})+2\text{cosec}^{-1}(-\sqrt{2})$ is:
(A) $-\frac{\pi}{2}$
(B) $-\frac{\pi}{4}$
(C) $\frac{\pi}{4}$
(D) $\frac{\pi}{2}$
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