## Trigonometry (11th Edition) Clone

$1.9362132$
Using the reciprocal identity $\sec\theta=\frac{1}{\cos\theta}$, $\sec 58.9041^{\circ}=\frac{1}{\cos 58.9041^{\circ}}$ Ensuring that the calculator is in degree mode, we type $\frac{1}{\cos 58.9041}$ into the calculator and solve: $\frac{1}{\cos 58.9041^{\circ}}\approx1.9362132$