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    Trigonometry Study Set 1
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    Exam 2: Acute Angles and Right Triangles
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    Use a Calculator to Decide Whether the Statement Is True
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Use a Calculator to Decide Whether the Statement Is True

Question 129

Question 129

True/False

Use a calculator to decide whether the statement is true or false.
-cos (2 ·30°)= 2 · cos 30°

Correct Answer:

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