Use a Double-Angle Identity to Find the Exact Value

question 88

Multiple Choice

Use a double-angle identity to find the exact value.

• A) 0
• B) 1
• C) -1

---

Definitions:

Galvanic Skin Response

A method of measuring the electrical conductance of the skin, which varies with its moisture level, often used as an indicator of emotional arousal.

Dilation of the Pupils

The expansion or widening of the pupils, which can occur in response to various factors such as changes in light, emotional states, or the effect of certain drugs.

Cognitive Component

Pertains to the beliefs, thoughts, and knowledge about an object, person, situation, or concept that are part of an attitude.

Physiological Component

Aspects of bodily functions and processes that contribute to physical health or activity.