Name the six main trigonometric functions and their formulas.
Some of the important trigonometric functions and identities that are used to solve trigonometric questions are: Various trigonometric identities are as follows: Even and Odd FunctionsĬosecant and Secant are even functions, all the others are odd.Ĭos 3x = 4cos 3x – 3cosx Things to Remember Hence, cot x = 1/tan x = b/a Formulas of Trigonometric Functions It refers to the reciprocal of the tangent function. It refers to the reciprocal of the sine function. It refers to the reciprocal of the cosine function.
Tan x can also be represented as sin x/cos x It refers to the ratio between the length of the opposite side of the triangle to the adjacent side length. It refers to the ratio between the length of the adjacent side of the triangle to the length of the hypotenuse of the triangle. It refers to the ratio between the length of the opposite side of the triangle to the length of the hypotenuse of the triangle. The image depicts the three primary trigonometric functions with respect to a right triangle. The other three main functions can be derived from the primary functions as cotangent (cot), secant (sec), and cosecant (cosec).Ĭheck out notes for Trigonometric Functions. In trigonometry, there are three primary functions of sine (sin), cosine (cos), tangent (tan). These trigonometric functions derive the relationship between the angles and sides of a triangle. The relationship between the sides and angles of a right-angle triangle is described by trigonometry functions, sometimes known as circular functions.
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