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The Trigonometric Identities are equations that are true for Right Angled Triangles. (If it isn't a Right Angled Triangle use the Triangle Identities page) Each side of a right triangle has a name: Adjacent is always next to the angle. And Opposite is opposite the angle.
In trigonometry, trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined. Geometrically, these are identities involving certain functions of one or more angles.
Secant, cosecant and cotangent, almost always written as sec, cosec and cot are trigonometric functions like sin, cos and tan. sec x = 1. cos x. cosec x = 1. sin x. cot x = 1 = cos x. tan x sin x. Note, sec x is not the same as cos -1 x (sometimes written as arccos x).
Cotangent is therefore an odd function, which means that cot (− θ) = − cot (θ) cot (− θ) = − cot (θ) for all θ θ in the domain of the cotangent function. The cosecant function is the reciprocal of the sine function, which means that the cosecant of a negative angle will be interpreted as csc ( − θ ) = 1 sin ( − θ ) = 1 − ...
What is Csc Sec Cot in Trigonometry? Csc sec cot are trigonometric functions named as, cosecant secant and cotangent, respectively. Csc sec cot are the reciprocal functions of sin cos tan, respectively.
After we revise the fundamental identities, we learn about: Proving trigonometric identities. But before we start to prove trigonometric identities, let's see where the basic identities come from. Recall the reciprocal trigonometric functions, csc θ, sec θ and cot θ from the trigonometric functions chapter: `csc theta=1/ (sin theta)`.
The remaining trigonometric functions secant (sec), cosecant (csc), and cotangent (cot) are defined as the reciprocal functions of cosine, sine, and tangent, respectively. Each of the six trig functions is equal to its co-function evaluated at the complementary angle. Periodicity of trig functions.
