Tangent Trigonometric Ratio
The ratio of any two right triangle sides is called a trigonometric ratio. The tangent ratio is defined as the ratio of the length of the opposite side of an angle divided by the length of the adjacent side.
If θ is the angle created by the base and hypotenuse of a right-angled triangle then,
tan θ = Perpendicular/Base = sin θ/ cos θ
Here, perpendicular is the side opposite to the angle and base is the side adjacent to it.
Tangent Addition Formula
Trigonometric identities are equalities using trigonometric functions that hold true for any value of the variables involved, hence defining both sides of the equality. These are equations that relate to various trigonometric functions and are true for every variable value in the domain. The formulae sin(A+B), cos(A-B), and tan(A+B) are some of the sum and difference identities.
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