CBSE 2023 · Region 4 · Set 1 · Q19 · 1 mark
Assertion (A) : All trigonometric functions have their inverses over their respective domains.
Reason (R) : The inverse of $\displaystyle \tan ^{-1} \mathrm{x}$ exists for some $\displaystyle \mathrm{x} \in \mathbb{R}$.
Official answer
From CBSE’s own marking scheme for this paper.
(D)
Assertion (A) is false and Reason (R) is true.
Inverse Trigonometric FunctionsBasic Concepts of Inverse Trigonometric FunctionsUnderstandassertion_reasonmedium
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CBSE Class 12 Mathematics past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.