In a right-angled triangle ABC, if ϴ is the angle made by sides AB and AC, and angle ABC is the right angle then we can say that AB is the opposite side, BC is the adjacent side and AC is the hypotenuse. In this article we learn about basic to all relations and identities of the trigonometric functions.
And we know that all the trigonometric formulae are based on the sin, cosine, tan and cot angles. Also, find the downloadable PDF of trigonometric formulas at BYJU'S.
One of the Pythagorean identities talks about the relationship between sec and tan. We have learned trigonometric formulae from fifth standard from the basic concepts. sin A/cosA (Opposite side/Hypotenuse) / (Adjacent side/Hypotenuse) Opposite side/Adjacent side. In trigonometry formulas, we will learn all the basic formulas based on trigonometry ratios (sin,cos, tan) and identities as per Class 10, 11 and 12 syllabi. Thus, the tangent formula in terms of sine and cosine is, tan x (sin x) / (cos x) Tangent Formulas Using Pythagorean Identity.
