Use a Calculator to Solve the Equation on the Interval $\cos 3 x = - \cos x$

question 121

Multiple Choice

Use a calculator to solve the equation on the interval [0, 2π) . Round the answer to two decimal places.
- $\cos 3 x = - \cos x$

• A) \(0.79,1.57,2.36,3.93,4.71,5.50\)
• B) \(0,0.79,2.36,3.14,3.93,5.50\)
• C) \(0,1.57,3.14,4.71\)
• D) \(1.57,4.71\)

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Definitions:

Cyclohexanol

A secondary alcohol with the formula C6H11OH, characterized by a six-member ring structure, and used as a precursor in the production of nylon.

Proton Transfer

The movement of a proton (H+) from one molecule to another, a fundamental process in many chemical and biological reactions.

Sodium Hydroxide

A highly caustic metallic base and alkali salt, commonly known as lye or caustic soda, used in various industrial processes.

Carbonyl

A functional group in organic chemistry consisting of a carbon atom double-bonded to an oxygen atom.