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Questions and Answers
Who created the earliest-known tables of values for trigonometric ratios?
Who created the earliest-known tables of values for trigonometric ratios?
- Hellenistic mathematicians
- Mathematicians in India (correct)
- Sumerian astronomers
- The Greeks
In which century did the field of trigonometry emerge in the Hellenistic world?
In which century did the field of trigonometry emerge in the Hellenistic world?
- 3rd century BC (correct)
- 5th century BC
- 2nd century BC
- 4th century BC
What did Sumerian astronomers use for angle measure?
What did Sumerian astronomers use for angle measure?
- Minutes of arc
- Gradients
- Radians
- Degrees (correct)
What are trigonometric identities commonly used for?
What are trigonometric identities commonly used for?
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In what areas has trigonometry been historically applied?
In what areas has trigonometry been historically applied?
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Study Notes
History of Trigonometry
- The earliest-known tables of values for trigonometric ratios were created by Hipparchus.
- The field of trigonometry emerged in the Hellenistic world in the 2nd century BCE.
Ancient Mesopotamian Astronomy
- Sumerian astronomers used degrees, minutes, and seconds to measure angles.
Applications of Trigonometric Identities
- Trigonometric identities are commonly used to solve triangular problems and to relate the trigonometric functions of one angle to those of another angle.
Historical Applications of Trigonometry
- Trigonometry has been historically applied in areas such as astronomy, navigation, and physics.
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