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Trigonometry
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In navigation, trigonometry is crucial for calculating distances and angles, especially in celestial navigation using stars and planets.
The Pythagorean identity, a fundamental relation in trigonometry, states that sin²θ + cos²θ = 1.
The cosine function (cos) in trigonometry expresses the ratio of the adjacent side to the hypotenuse.
In trigonometry, the sine function (sin) relates the ratio of the length of the opposite side to the hypotenuse in a right-angled triangle.
Trigonometry plays a key role in fields such as physics, engineering, and computer science, where understanding angles and periodic functions is essential.
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