Tutorial - Given the Cosine of an Angle Determine the Double Angle for Sine, Cosine and Tangent

Tutorial - Given the Cosine of an Angle Determine the Double Angle for Sine, Cosine and Tangent

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial covers solving a trigonometric problem involving sine, cosine, and tangent of a given angle. It explains the constraints of the angle, the use of the unit circle, and constructing a triangle to find missing values. The tutorial then applies double angle formulas for sine, cosine, and tangent, demonstrating the calculations step-by-step. The session concludes with a Q&A to clarify any doubts.

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7 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What are the three trigonometric functions discussed in the text?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

How do you determine the sine and tangent of angle U based on the cosine value provided?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the constraint given for the angle U in the problem.

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the significance of the unit circle in finding the values of sine and cosine?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the process of calculating the sine of 2U using the double angle formula.

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

What formula is used to calculate cosine of 2U, and how is it derived?

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain how to find the tangent of 2U using the tangent values derived earlier.

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