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| trig·o·no·met·ric func·tion (plural trig·o·no·met·ric func·tions) |
noun |
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| Definition: |
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function of angle: a function of an angle or arc expressed as a ratio of the two sides of a right triangle containing the angle. The trigonometric functions are sine, cosine, tangent, cotangent, secant, and cosecant.
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