small-angle approximation
Sign in to saveSimplification of the basic trigonometric functions
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list of trigonometric identities
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physics
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astronomy
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computer science
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engineering
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International Standard Book Number
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circle
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angle
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frequency
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optics
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electromagnetism
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mechanics
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differential equation
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digital object identifier
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cartography
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potential energy
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parsec
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radian
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trigonometric function
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pendulum
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