4
Answer: ASet 3: Trigonometry
Explanation
Solve for :
A.✓ Correct
9
B.
18
C.
4
D.
19
Detailed Explanation
Choice A is correct. 1. Start: Divide by 2: Subtract 3: Therefore, .
Key Steps:
•
Apply the appropriate mathematical formula
•
The correct answer is 9
Why others are wrong:
B: This would give an incorrect result. Choice B is incorrect and may result from a calculation error.
C: This would give an incorrect result. Choice C is incorrect and may result from a calculation error.
D: This would give an incorrect result. Choice D is incorrect and may result from a calculation error.
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