Use a Calculator to Find the Value

question 65

Multiple Choice

Use a calculator to find the value. Give answers as real numbers and round to 4 decimal places, if necessary.
-sin (arctan 2)

• A)Undefined
• B)0.8944
• C)-0.8172
• D)0

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Definitions:

B. F. Skinner

An influential American psychologist known for his work in behaviorism and development of operant conditioning – a method of learning that occurs through rewards and punishments.

Reinforcement

In psychology, a process in which a behavior is strengthened or increased by a consequence, such as a reward or a removal of an unpleasant stimulus.

Shaping

An educational strategy where reinforcing actions that progressively mimic the sought-after behavior are employed.

Vocal Apparatus

The collective term for the organs and structures of the body involved in the production of voice and speech.