Decide Whether the Expression Is or Is Not an Identity $$\sqrt { 1 - \cos ^ { 2 } x } = \sin x$$

question 283

Multiple Choice

Decide whether the expression is or is not an identity.
- $$\sqrt { 1 - \cos ^ { 2 } x } = \sin x$$

• A) Identity
• B) Not an identity

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Definitions:

Traits

Relatively stable patterns of thought, feeling, or behavior that characterize an individual.

States

Temporary patterns of thought, feeling, or behavior.

Walter Mischel

A psychologist known for his research on personality theory and cognitive psychology, including the famous Marshmallow Test related to delayed gratification.

Circumstances

A condition or fact that affects a situation, often used in reference to the specific details or context surrounding an event or decision-making process.