Use a Calculator to Find the Value of the Expression $\cot ^ { - 1 } \left( - \frac { 5 } { 7 } \right)$

question 49

Multiple Choice

Use a calculator to find the value of the expression in radian measure rounded to two decimal places.
- $\cot ^ { - 1 } \left( - \frac { 5 } { 7 } \right)$

• A) \(- 35.54\)
• B) \(- 0.95\)
• C) \(- 54.46\)
• D) \(- 0.62\)

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Definitions:

Egocentrism

The cognitive inability to differentiate between one's own perspective and another person's perspective, often noticed in children but can also occur in adults.

Conservation

The act of preserving, protecting, or restoring natural environments and wildlife to prevent depletion or extinction.

Abstract Thought

The ability to think about objects, principles, and ideas that are not physically present. It is a level of thinking that involves processing ideas beyond concrete reality.

Reversibility

In cognitive development, reversibility refers to the understanding that objects can be changed and then returned back to their original form or condition, a concept introduced by Jean Piaget.