What is the difference of two angles in terms of cosine?
How to use sum and difference of two angles to verify an identity
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Mathematics
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11th Grade - University
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Hard
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The video tutorial explores the concept of angle differences, focusing on the use of cosine formulas. It discusses the application of the unit circle in calculations and the role of Pi in cosine computations. The tutorial concludes with a recap of the key points covered.
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5 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Can you explain the formula used for the cosine of the difference of two angles?
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
How does the unit circle relate to the cosine and sine of angles?
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
What values do cosine and sine take at the angle π?
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
What should you remember when working with angles in trigonometry?
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