Use a Calculator to Evaluate the Given Trigonometric Function $$\cos \left( 30 ^ { \circ } \right)$$

question 61

Multiple Choice

Use a calculator to evaluate the given trigonometric function. Round the answer to three decimal places as needed. $$\cos \left( 30 ^ { \circ } \right)$$ .

• A) \(0.866\)
• B) \(0.966\)
• C) \(1.066\)
• D) \(0.766\)
• E) \(0.666\)

Understand the concept of absolute threshold and how it relates to sensory perception.

Grasp the process and implications of sensory adaptation in human perception.

Comprehend the principle of just noticeable difference (JND) and its application in sensory experiences.

Explain subliminal perception and its limitations.

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