What is the exact value of ?
Answer and explanation
Correct answer: C. 1
.
.
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- Step 1: Use the standard exact trigonometric values for special angles :
- Step 2: Compute the sum :
Answer
1.
Why not the others: The values frac{1}{2}, sqrt{3}, and frac{sqrt{3}}{2} confuse the trigonometric sum with single special values or tangent values.
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