θ Is an Acute Angle and Sin θ and Cos $\sin ^ { 2 } 20 ^ { \circ } + \cos ^ { 2 } 20 ^ { \circ }$

question 265

Multiple Choice

θ is an acute angle and sin θ and cos θ are given. Use identities to find the indicated value.
- $\sin ^ { 2 } 20 ^ { \circ } + \cos ^ { 2 } 20 ^ { \circ }$

• A) 1
• B) 0
• C) \(0.20\)
• D) \(0.04\)

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Definitions:

Performance-Prove Orientation

A focus or attitude where individuals are driven to demonstrate their competencies and skills in order to be positively evaluated by others.

Performance-Avoid Orientation

A focus on avoiding tasks due to fear of failure, leading to a tendency to sidestep challenges to prevent a poor performance evaluation.

Expectancy Theory

A motivational theory suggesting that individuals are motivated to act in certain ways based on the expectation that their actions will lead to desired outcomes.

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