Chapter 2 - Section 2.2 - Calculators and Trigonometric Functions of an Acute Angle - 2.2 Problem Set - Page 71: 41

$\sec 48.2^{\circ}$ = 1.5003

Using calculator in degree mode- $\sec 48.2^{\circ}$ = 1.5003020027 (Finding $\cos$ first and then using reciprocal $\frac{1}{x}$) Rounding it to four places past the decimal point- $\sec 48.2^{\circ}$ = 1.5003