Cos tan and sin formulas
[DOC File]7-3 The Sine and Cosine Functions
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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]Trigonometric Identities and Equations: Unit Summary
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For example sin(900) = 1 as seen on the graph for y = sinθ. Be able to derive and apply the double angle formulas. Prove identities using known identities from your formula sheet. Be familiar with some key strategies to prove identities. Some strategies include... csc, sec, and cot can be turned into sin, cos, tan.
[DOC File]Trigonometry
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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]Trigonometric Formulas - Arizona State University
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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 …
[DOCX File]A
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tan x = sin x / cos xii. cot x = cos x / sin x. Double Angle Formulas. sin 2x = 2 sin x cos x. cos 2x = cos2x – sin2x = 2cos2x – 1 = 1 – 2sin2x. Power Reducing Formulas. sin 2 x= 1- cos 2x 2 ii. cos 2 x= 1+ cos 2x 2 . Section 4: Unit Circle. Fill in the table. Answers should be exact. No decimals.
[DOC File]ADDITION AND SUBTRACTION FORMULAS
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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]Trigonometry Graphic Organizer Project
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___ Conversion Formulas (radians/degrees, rectangular/polar) ___ Definitions of the six trig functions in terms of x, y and r ___ Domain, range, fundamental period and . basic graph. of all six trig functions ___ Dot Product ___ Double and half angle formulas for sin, cos and tan ___ Geometric Formulas (an, Sn and formulas for infinite ...
[DOC File]I want to talk about the basis of trigonometry, the unit ...
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cos(–() = cos(() sin(–() = – sin(() tan(-() = – tan(() A point P(x, y) is on the unit circle. Find the value of the six trig functions. Let P(t) be a point on the unit circle. ... (-t). Notice the cosines are the same and the sines are the opposites. This reinforces what the formulas for negatives stated. Let P be a …
[DOC File]TRIGONOMETRY
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They are written as sin θ, cos θ, and tan θ ... tan (A + B ) Algebra 3 Trig Formulas Assignment #6 (1) Find each of the following numbers please. (a) sin(15) (b) cos(15) (c) sin(105) (d) cos(75) (e) sin (f) cos (g) sin(345) (h) tan(15) (2) Simplify each of the following please. ...
[DOC File]Formulas - Math 115
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= tan x secn-2x + = - cot x cscn-2x + = after substituting u = sin x and using cos2x = 1 – sin2x. Similarly when sin is to an odd power. Use sin2x = and cos2x = = after substituting u = tan x and using sec2x = 1 + tan2x = after substituting u = sec x and using tan2x = sec2x - 1 = after tan2x = sec2x – 1.
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