In Exercises 1–10, indicate if the point with the given polar coordinates is represented by A, B, C, or D on the graph. (−3, 5π/4)
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- 0. Review of College Algebra4h 45m
- 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
Multiple Choice
Plot the point on the polar coordinate system.
(6,−611π)
A
B
C
D
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Verified step by step guidance1
Identify the polar coordinates given: (6, -\(\frac{11\pi}{6}\)). The first value, 6, is the radius (r), and the second value, -\(\frac{11\pi}{6}\), is the angle (\(\theta\)) in radians.
Convert the negative angle to a positive angle by adding 2\(\pi\). Since -\(\frac{11\pi}{6}\) is negative, add 2\(\pi\) to find the equivalent positive angle: -\(\frac{11\pi}{6}\) + 2\(\pi\) = \(\frac{\pi}{6}\).
Locate the angle \(\frac{\pi}{6}\) on the polar coordinate system. This angle is in the first quadrant, 30 degrees from the positive x-axis.
From the origin, move along the direction of the angle \(\frac{\pi}{6}\) to a distance of 6 units, as indicated by the radius.
Plot the point at the intersection of the line at angle \(\frac{\pi}{6}\) and the circle with radius 6. This is the correct location of the point (6, -\(\frac{11\pi}{6}\)) on the polar coordinate system.
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