Use the Unit Circle Below to Find All Real Numbers

question 44

Multiple Choice

Use the unit circle below to find all real numbers t between 0 and 2 p for which cos t = 0.9. Estimate answer to the nearest tenth.

• A)0.5, 5.8
• B)4.3, 5.2
• C)2.0, 0.5
• D)2.7, 3.6
• E)1.1, 2.0

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