Question 13, 1.3.67 HW Scors: 59.15\%, 11.24 of 19 Points 0 of 1 Find the indicated function value. If it is undefined, say so. \[ \sec 0^{\circ} \] Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. \( \sec 0^{\circ}= \) \( \square \) (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.) B. The function is undefined.

The secant function, \(\sec \theta\), is the reciprocal of the cosine function. Since \(\cos 0^{\circ} = 1\), we find that: \[ \sec 0^{\circ} = \frac{1}{\cos 0^{\circ}} = \frac{1}{1} = 1 \] So the answer is A. \(\sec 0^{\circ} = 1\). It's like having a superhero in the world of trigonometry—when \( \theta \) is zero, \(\sec\) swoops in as a perfect one, saving the day! Just remember, the secant will be undefined if you try to find it at angles where cosine is zero, like \(90^\circ\) or \(270^\circ\). Keep an eye on those angles!