Question:medium

The value of \( \tan\!\left\{ \cos^{-1}\!\left(\frac{\sqrt{2}}{2}\right) - \frac{\pi}{2} \right\} \) is __________.

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Always evaluate inverse trigonometric values first, then simplify angles before applying trigonometric identities.

Updated On: May 6, 2026

\( -1 \)
\( \frac{1}{\sqrt{2}} \)
\( 1 \)
\( -\frac{1}{\sqrt{2}} \)

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The Correct Option is A

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