Write the Following Expression in Algebraic Form $\sin ( \arccos ( 2 x ) )$

question 67

Multiple Choice

Write the following expression in algebraic form. $\sin ( \arccos ( 2 x ) )$

• A) \(\sqrt { 1 - 4 x ^ { 2 } }\)
• B) \(1 - 2 x ^ { 2 }\)
• C) \(1 + 2 x ^ { 2 }\)
• D) \(1 + 4 x ^ { 2 }\)
• E) \(\sqrt { 1 - 2 x ^ { 2 } }\)

---

Definitions:

Positive Affect

A psychological term referring to the dimensions of mood that range from pleasantness to unpleasantness, indicating how positive one's emotional state is.

Self-Esteem

The beliefs we have about our own worth following the self-evaluation process.

Cheerfulness

A state of being visibly happy, positive, and showing a bright outlook.

Emotional Labor

The process of managing one’s feelings to present positive emotions even when they are contrary to one’s actual feelings.