Evaluate the Given Quantity, but Do Not Use a Calculator $\cos ^ { - 1 } \left( - \frac { 1 } { 2 } \right)$

question 10

Multiple Choice

Evaluate the given quantity, but do not use a calculator or table. $\cos ^ { - 1 } \left( - \frac { 1 } { 2 } \right)$

• A) π
• B) \(\frac { \pi } { 2 }\)
• C) 0
• D) \(\frac { \pi } { 3 }\)
• E) \(\frac { 2 \pi } { 3 }\)

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Definitions:

Theory Perseverance Effect

The phenomenon where beliefs persist even after the evidence supporting them has been discredited or debunked.

Thinking About Thinking

The process of reflecting on one's own thought patterns, beliefs, and cognitive processes; also known as metacognition.

Correspondence Bias

The tendency to draw inferences about a person's unique and enduring dispositions from behaviors that can be entirely explained by the situations in which they occur.

External Attributions

The process of assigning the cause of behavior to situational factors outside the individual, rather than internal characteristics.