The trigonometric functions are known to be sine, cosine, tangent, cotangent, secant and cosecant.
The term trigonometric functions are known to be a kind of real functions that helps to link an angle of a right-angled triangle to other ratios of two side lengths of that angle.
Note that they are often used in the field of sciences that are associated with geometry, such as the area of navigation, solid mechanics and also in the physics field.
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