Introduction to Trigonometry

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What is trigonometry?
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Trigonometry is a branch of mathematics that studies the relationships between the sides and angles of triangles.
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Name the three main trigonometric functions.
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The three main trigonometric functions are sine, cosine, and tangent.
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Which type of triangle is trigonometry mainly concerned with?
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Trigonometry is mainly concerned with right-angled triangles.
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What do the letters 'SOH' in the mnemonic SOHCAHTOA stand for?
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'SOH' stands for Sine equals Opposite over Hypotenuse.
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What angle measure is most commonly used in basic trigonometry?
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Degrees are most commonly used, but radians are also important in advanced studies.
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