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Assessment
What is the main purpose of using trigonometry in astronomy as per Ptolemaic principles?
To calculate the angular positions of celestial bodies
To determine the mass of stars
To measure the speed of light
To predict solar eclipses
Which trigonometric function is particularly useful in calculating distances to stars based on parallax?
Sine
Cosine
Tangent
Cosecant
In Ptolemy's Almagest, what geometric shape is used to model the movement of planets?
Ellipses
Circles
Parabolas
Hyperbolas
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