How to evaluate sum of two angles using the sum formula for sine

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Mathematics
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11th Grade - University
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Hard
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5 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
What is the sign formula for the sum of two angles U and V?
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
How do you evaluate the sine and cosine for the angle π / 6?
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
What are the coordinates for the angle 3π / 4 in the unit circle?
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
Explain how to evaluate the expression sin(3π / 4) * cos(π / 6) + cos(3π / 4) * sin(π / 6).
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
What is the final answer after factoring out in the expression derived from the previous evaluation?
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