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Title: Trig_Cheat_Sheet Author: ptdaw Created Date: 11/2/2022 7:09:02 AM
Math Formulas: Trigonometry Identities Right-Triangle De nitions 1. sin = Opposite Hypotenuse 2. cos = Adjacent Hypotenuse 3. tan = Opposite Adjacent 4. csc = 1 sin = ... Double Angle and Half Angle Formulas 26. sin(2 ) = 2 sin cos 27. cos(2 ) = cos2 sin2 28. tan(2 ) = 2 tan 1 2tan 29. sin 2 = r 1 cos 2 30. cos 2 = r 1+cos 2 31. tan 2 = 1 cos sin =
Trigonometry Formula Sheet - Free download as PDF File (.pdf) or read online for free.
Fundamental trig identity. cos(. (cos x)2 + (sin x)2 = 1. 1 + (tan x)2 = (sec x)2 (cot x)2 + 1 = (cosec x)2.
College Algebra - Trigonometry Formula Sheet Addition Formulas sin(s+t) = sin(s)cos(t)+cos(s)sin(t) cos(s+t) = cos(s)cos(t) sin(s)sin(t) Double-Angle Formulas sin(2x) = 2sin(x)cos(x) cos(2x) = 2cos2(x) 1 Formulas for lowering powers sin2(x) = 1 cos(2x) 2 cos2(x) = 1+cos(2x) 2 Half-Angle Formulas sin(x=2) = r 1 cos(x) 2 cos(x=2) = r 1+cos(x) 2 ...
3.5: Trigonometric Functions Reference Evans 6.1 Consider a right-angled triangle with angle θ and side lengths x, y and h as shown: θ x y h The trigonometric functions sine, cosine and tangent of θ are defined as: sinθ = opposite hypotenuse = y h, cosθ = adjacent hypotenuse = x h tanθ = opposite adjacent = y x = sinθ cosθ 71
Period. The period of a function is the number, T, such that f ( q + T ) = f ( q ) . So, if w is a fixed number and q is any angle we have the following periods. sin ( wq )
