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• Learn tricky trig functions — take things to the next level with SOH-CAH-TOA and circular functions • Identify identities — dig into reciprocal, ratio, opposite-angle, and Pythagorean identities • Make trig work — get practical with trig, find out how to use your calculator for complex solutions, and solve trig equations
Title: Trig_Cheat_Sheet Author: ptdaw Created Date: 11/2/2022 7:09:02 AM
This free Trigonometry cheatsheet has a master list of common definitions, symbols, formulas, and notes, all in one place. Easily learn important topics with practice problems and flashcards, export your terms to pdf, and more.
Trig Cheat Sheet. Definition of the Trig Functions. Right triangle definition. For this definition we assume that. < q. p. 0 < or 0 ° < q < 90 ° . 2. hypotenuse opposite. q. adjacent. Unit circle definition. For this definition q is any angle. y. ( x , y ) q x. opposite. sin q = hypotenuse. q = adjacent. cos hypotenuse. q opposite. tan = adjacent.
Triple-Angle Identities. \sin (3x)=-\sin^3 (x)+3\cos^2 (x)\sin (x) \sin (3x)=-4\sin^3 (x)+3\sin (x) \cos (3x)=\cos^3 (x)-3\sin^2 (x)\cos (x) \cos (3x)=4\cos^3 (x)-3\cos (x) \tan (3x)=\frac {3\tan (x)-\tan^3 (x)} {1-3\tan^2 (x)} \cot (3x)=\frac {3\cot (x)-\cot^3 (x)} {1-3\cot^2 (x)}
The main functions in trigonometry are Sine, Cosine and Tangent. They are simply one side of a right-angled triangle divided by another. For any angle " θ ": (Sine, Cosine and Tangent are often abbreviated to sin, cos and tan.)
Right triangle definition Unit Circle Definition. For this definition we assume that For this definition is any angle. 0 < < or 0 < < 90 . 2. opposite. hypotenuse sin( ) =. hypotenuse adjacent. csc( ) = opposite hypotenuse cos( ) = hypotenuse. sec( ) = adjacent opposite tan( ) = adjacent.
