Sin cos and tan formulas
[DOC File]ADDITION AND SUBTRACTION FORMULAS
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Fundamental Identities. cos2 ( + sin2 ( = 1. 1 + tan2 ( = sec2 (1 + cot2 ( = csc2 (sin ( = − sin(−() csc ( = − csc(−() cos ( = cos(−() sec ( = sec(−()
Sin Cos Tan Values (Formula, Table & How to Find)
sin = sincos + cos sin. sin = sin cos - cossin cos = coscos - sin sin cos = coscos + sinsin . tan = tan = SPECIAL ANGLES 2nd 3rd 4th 120 ___ ___ 135 ___ ___ 150 ___ ___ 180 ___ ___ COMBINATIONS. 15 = 345 = 255 = = EXAMPLES. Evaluate each expression. 1) sin 75. sin (45 + 30) sin(120 – 45) 2) cos 345. 3) tan
[DOC File]TRIGONOMETRY
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sin = sincos + cos sin. sin = sin cos - cossin. cos = coscos - sin sin. cos = coscos + sinsin . tan = tan = COMBINATIONS. 15 = 345 = 255 = 75 = EXAMPLES. Evaluate each expression. 1) sin 75. 2) cos 345. 3) tan 165. Simplify the following: 4) cos (270 - x) 5) sin ( x + ) = 6) cos ( ) Find each of the following numbers , please.
[DOC File]7-3 The Sine and Cosine Functions
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"Soh-Cah-Toa". Remember, csc x = 1/sin x, sec x = 1/cos x, cot x = 1/tan x. Use Pythagoras' formula to determine unknown sides in a right triangle. Law of Cosines: (Used in SAS or SSS triangles) Lower case a, b, c are always sides, Capital A, B, C are angles. A is opposite a, etc.. Analogous formulas …
[DOC File]Trigonometry
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Sin 135o = Sin ( 180o - 135o) = Sin 45o. Cos 310o = Cos (360o - 310o) = Cos 50o. Sin 210o = Sin (210o - 180o) = - Sin 30o (Sin is negative in third quad) Cos 112o = Cos (180o - 112o) = - Cos 68o (Cos is negative in 2nd quad) The Four Other Trig Functions. The following are the defintions of the other 4 trig functions. tangent of : tan = y/x
[DOC File]Formulas .edu
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Sep 24, 2009 · sin(A+B) = sinA cosB + sinB cosA sin(A-B) = sinA cosB - sinB cosA. cos(A+B) = cosA cos B – sinA sinB cos(A-B) = cosA cos B + sinA sinB. tan(A+B) = tan(A-B) = 13. Double-Angle Formulas: sin 2( = 2 sin( cos(cos 2( = cos2( - sin2(or = 1- 2sin2(or = 2cos2( - 1. tan 2( = 14. Half-Angle Formulas: or = 15. Inverse Functions: “The fat man in his ...
[DOC File]Basic Trigonometric Identities
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Formulas. Trigonometric Identities: sin(x+y) = sinx cosy + cosx siny cos(x+y) = cosx cosy - sinx siny ... tan-1x = = tan-1x = uv - = - ( + ) e-ax = - x cos x + sin x = x sin x + cos x ... (x, t) = bn cos nt sin nx where bn are Fourier sine coefficients of f(x) Laplace's Equation – In a disk in polar coordinates ...
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