Which of the following correctly expresses the conversion from rectangular coordinates to cylindrical coordinates ?
Table of contents
- 0. Review of College Algebra4h 43m
- 1. Measuring Angles40m
- 2. Trigonometric Functions on Right Triangles2h 5m
- 3. Unit Circle1h 19m
- 4. Graphing Trigonometric Functions1h 19m
- 5. Inverse Trigonometric Functions and Basic Trigonometric Equations1h 41m
- 6. Trigonometric Identities and More Equations2h 34m
- 7. Non-Right Triangles1h 38m
- 8. Vectors2h 25m
- 9. Polar Equations2h 5m
- 10. Parametric Equations1h 6m
- 11. Graphing Complex Numbers1h 7m
9. Polar Equations
Polar Coordinate System
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Plot the point on the polar coordinate system.
(5,210°)
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Verified step by step guidance1
Identify the polar coordinates given: (5, 210°). This means the point is 5 units away from the origin at an angle of 210° from the positive x-axis.
Convert the angle from degrees to radians if necessary. Since 210° is a common angle, it can be converted to radians as 210° = \( \frac{7\pi}{6} \) radians.
Locate the angle \( \frac{7\pi}{6} \) on the polar coordinate system. This angle is in the third quadrant, as it is more than \( \pi \) (180°) but less than \( \frac{3\pi}{2} \) (270°).
From the origin, measure a distance of 5 units along the direction of the angle \( \frac{7\pi}{6} \).
Plot the point at this location. The correct plot should be in the third quadrant, 5 units from the origin, along the line corresponding to \( \frac{7\pi}{6} \).
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