Without Using a Calculator, Give the Exact Trigonometric Function Value $\sqrt { 2 }$

question 138

Multiple Choice

Without using a calculator, give the exact trigonometric function value with rational denominator.
-sec 45

• A) \(\sqrt { 2 }\)
• B) 1
• C) \(\frac { 1 } { 2 }\)
• D) \(\frac { 2 \sqrt { 3 } } { 3 }\) °

---

Definitions:

Machine-Hour

A measure of production or operation time where costs are allocated based on the number of hours a machine is operated.

Predetermined Overhead Rate

A rate calculated before the accounting period begins, used to allocate manufacturing overhead to individual jobs.

Machine-Hours

A unit of measurement for production capacity, indicating the total number of hours that machinery is operational during a given period.

Raw Materials

Basic substances in their natural, modified, or semi-processed state, used as inputs to production or manufacturing.