Evaluate for theta between 0 and 2pi

Evaluate for theta between 0 and 2pi

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains how to find the angle Theta when the sine of Theta equals the square root of 3/2, within the range of 0 to 2π. It starts by identifying the initial angle π/3 and explores other angles on the unit circle with the same sine value. The tutorial discusses reflections over the Y-axis and the constraints of the problem, concluding with the identification of two valid angles.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the relationship between the sine of an angle and the unit circle?

The sine of an angle is the circumference of the unit circle.

The sine of an angle is the X-coordinate on the unit circle.

The sine of an angle is the Y-coordinate on the unit circle.

The sine of an angle is the radius of the unit circle.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first angle where the sine of Theta equals the square root of 3/2?

π/4

π/3

π/6

π/2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the second angle, where the sine of Theta equals the square root of 3/2, found?

By doubling the first angle.

By reflecting the first angle over the Y-axis.

By reflecting the first angle over the X-axis.

By subtracting the first angle from π.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the second angle where the sine of Theta equals the square root of 3/2?

3π/4

π/4

2π/3

5π/6

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why are reflections over the X-axis not considered for finding angles where the sine of Theta equals the square root of 3/2?

Because they result in negative sine values.

Because they result in cosine values instead.

Because they result in angles greater than 2π.

Because they result in angles less than 0.