Choose the One Alternative That Best Completes the Statement or Answers

question 39

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
Complete the identity.
- $2 \tan \theta - ( 1 + \tan \theta ) ^ { 2 } = ?$

• A) 1
• B) \(- \sec ^ { 2 } \theta\)
• C) 0
• D) \(1 - \sin \theta\)

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Definitions:

Gate Theory

A theory suggesting that the spinal cord contains a neurological "gate" that either blocks pain signals or allows them to continue on to the brain.

Signal-Detection Theory

A framework describing how individuals discern between information-bearing patterns and random patterns that distract from the information, especially in the context of decision-making under uncertainty.

Volley Principle

A theory explaining how auditory nerve fibers collectively transmit sound wave frequencies by firing in rapid succession.

Frequency Theory

A theory in hearing that suggests the frequency of the auditory nerve's impulses corresponds to the frequency of a sound wave, affecting the pitch we perceive.