So, if ω is a fixed number and θ is any angle we have the following periods. 1 sin 1θ− ≤ ≤ csc 1 and csc 1θ θ≥ ≤ − 1 cos 1θ− ≤ ≤ sec 1 and sec 1θ θ≥ ≤ − tanθ−∞ < < ∞ cotθ−∞ < < ∞ Period The period of a function is the number, T, such that ( ) ( )f T fθ θ+ =. sin 1 y yθ = 1csc y θ = cos 1 x xθ = 1sec x θ = tan y x θ = cot x y θ = Facts and Properties Domain The domain is all the values of θ that can be plugged into the function.
oppositesin hypotenuse θ = hypotenusecsc opposite θ = adjacentcos hypotenuse θ = hypotenusesec adjacent θ = oppositetan adjacent θ = adjacentcot opposite θ = Unit circle definition For this definition θ is any angle. Download Trigonometry Cheat Sheet with Unit Circle and more Trigonometry Cheat Sheet in PDF only on Docsity!Trig Cheat Sheet Definition of the Trig Functions Right triangle definition For this definition we assume that 0 2 π θ< < or 0 90θ° < < °.
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