Use the Fundamental Identities to Find the Value of the Trigonometric

question 84

Multiple Choice

Use the fundamental identities to find the value of the trigonometric function.
-Find $\cos \theta$ , given that $\tan \theta = - \frac { 4 } { 7 }$ and $\theta$ is in quadrant II.

• A) \(\frac { \sqrt { 65 } } { 4 }\)
• B) \(- \frac { 7 \sqrt { 65 } } { 65 }\)
• C) \(\frac { 7 \sqrt { 65 } } { 65 }\)
• D) \(- \frac { \sqrt { 65 } } { 7 }\)

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Definitions:

Working Memory

A cognitive entity of limited scope, tasked with the interim preservation of information for processing.

Implicit Memory

A variety of memory that aids in the accomplishment of tasks by drawing on past experiences, without any conscious awareness of these experiences by the individual.

Procedural Memory

A type of implicit memory that involves motor skills and behavioral habits.

Implicit Memory

Implicit memory is a type of long-term memory that operates below the level of conscious awareness, influencing thoughts and behaviors without explicit recollection, such as skills and tasks learned through repetition.