Question:
\( \sec^2 23^\circ - \tan^2 23^\circ + 2 \) is:
\( \sec^2 23^\circ - \tan^2 23^\circ + 2 \) is:
Show Hint
The identity:
\[
\sec^2 \theta - \tan^2 \theta = 1
\]
is useful for solving such problems.
Updated On: Oct 27, 2025
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- \( 1 \)
- \( 2 \)
- \( 3 \)
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The Correct Option is C
Solution and Explanation
Using the trigonometric identity:
\[ \sec^2 \theta - \tan^2 \theta = 1 \] Substituting \( \theta = 23^\circ \):
\[ 1 + 2 = 2 \]
\[ \sec^2 \theta - \tan^2 \theta = 1 \] Substituting \( \theta = 23^\circ \):
\[ 1 + 2 = 2 \]
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