Evaluate the Integral $$\int _ { - \pi } ^ { \pi } \sqrt { \frac { 1 + \cos x } { 2 } } d x$$

question 107

Multiple Choice

Evaluate the integral.
- $$\int _ { - \pi } ^ { \pi } \sqrt { \frac { 1 + \cos x } { 2 } } d x$$

• A) 4
• B) 1
• C) 0
• D) 2

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Definitions:

Neutral Stimulus

An initially neutral stimulus that does not provoke an inherent response until it becomes linked with a naturally occurring stimulus.

Conditioned Response

A learned response to a previously neutral stimulus that has been repeatedly presented along with an unconditioned stimulus.

Operant Conditioning

Operant conditioning is a learning process whereby behavior is strengthened or weakened by reinforcement or punishment.

Classical Conditioning

A training approach characterized by making associations between a stimulus in the environment and one that occurs naturally, causing a conditioned behavior.