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cosine    
n. 余弦

余弦

cosine
餘弦

cosine
餘弦

cosine
n 1: ratio of the adjacent side to the hypotenuse of a right-
angled triangle [synonym: {cosine}, {cos}]

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英文字典中文字典相關資料:
  • Trigonometry Formula Sheet — Mathwords
    Complete trig formula sheet — unit circle values, identities, inverse trig, law of sines cosines, and more Free printable reference for precalculus and calculus
  • Summary of trigonometric identities - Clark University
    Note that there are three forms for the double angle formula for cosine You only need to know one, but be able to derive the other two from the Pythagorean formula
  • Trigonometry, trigonometric functions, sin, cos, tan, cot - Math10
    The x -coordinate of P is called the cosine of A and is denoted by cos A; The y -coordinate of P is called the sine of A and is denoted by sin A; The number $\frac {\sin (A)} {\cos (A)}$ is called the tangent of A and is denoted by tan A; The number $\frac {\cos (A)} {\sin (A)}$ is called the cotangent of A and is denoted by cot A





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