DETAILSLARTRIG11 1.3.032.Use a calculator to evaluate each function. Round your answers to four decimal places. (Be sure the calculator is in the correct mode.)(a) sec 27° 24'(b) CSC 70° 11'

Answered: Use a calculator to evaluate each…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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LARTRIG11 1.3.032.
Use a calculator to evaluate each function. Round your answers to four decimal places. (Be sure the calculator is in the correct mode.)
(a) sec 27° 24'
(b) CSC 70° 11'

Expert Solution

Step 1

a) sec 27 degree 24 minute

Answer: The secant function is the reciprocal of the cosine function. To find sec(27°24'), we can find the cosine of the angle and take its reciprocal. In degrees mode, the cosine of 27°24' can be found using a calculator, which yields 0.8878. Taking the reciprocal, we have sec(27°24') = 1 / 0.8878 = 1.1263.

Rounding to four decimal places, we have sec(27°24') = 1.1263 ≈ 1.1263 .

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