Exact Trig Values - Easy Table

Exact Trig Values - Easy Table

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

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The video tutorial introduces two methods to remember exact trigonometric values for specific angles: 0, 30, 45, 60, and 90 degrees. The first method involves using a table to calculate sine, cosine, and tangent values by dividing by two and applying square roots. The second method, introduced at the end, involves a hand trick for those who find the table method challenging. The tutorial emphasizes understanding the unit circle and the repetitive nature of trigonometric functions, while focusing on practical calculation techniques.

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5 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the method to find sine values using the table mentioned in the video.

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What are the exact trigonometric values for the angles 0, 30, 60, and 90 degrees?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

How do you calculate cosine values for the angles discussed?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the process of finding tangent values as explained in the video.

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

What alternative method is suggested for remembering trigonometric values if the table does not work?

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