Solving a simple trigonometric equation by isolating cosine

Solving a simple trigonometric equation by isolating cosine

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial covers solving trigonometric equations by applying inverse operations. It begins with an introduction to the concept, followed by a detailed explanation of using inverse operations to isolate trigonometric functions. The unit circle is introduced as a tool for understanding the relationship between angles and their cosine values. The tutorial concludes with identifying angles on the unit circle that have specific cosine values, emphasizing the importance of knowing the unit circle and its coordinates.

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5 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What are the steps to solve a trigonometric equation involving cosine?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

How do you apply the addition property of equality in solving trigonometric equations?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What does it mean when we say cosine of an angle is equal to 1/2?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the significance of the unit circle in solving trigonometric equations.

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

Identify the angles in the unit circle where the cosine value is 1/2.

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