How to use sin cos tan
[DOC File]Geometry 2-B
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Use sin, cos, or tan proportion to solve for the variable. 41. 42. 43. a = _____ a = _____ a = _____ 44. Donovan leans a 15-ft ladder against the wall. The ladder makes a 70° angle with the ground. How far up the building does the ladder reach? 45. A tree casts a shadow 25 feet long when the angle of …
[DOC File]Trigonometry - WPI
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For starters, we will focus only on sine and cosine and then fall back on the fact that tan(θ) = sin(θ)/ cos(θ). Our goal is to fill in the following table based on what we know: θ sin(θ) cos(θ) 0° 30° 45° 60° 90° 45° is a good place to begin. The triangle may look like
[DOC File]The Unit Circle - Simple Trigonometry
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Part III: The tangent function (tan (). The tangent of an angle is equivalent to the slope of the ray. In terms of sin ( and cos (, we can define tan ( = (sin ()/(cos (). Fill in the following table. Give . exact. values. Angle in degrees Tan ( 0 30 45 90 Can you explain why the …
[DOC File]Investigating Sine, Cosine and Tangent of Obtuse Angles
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a) tan 210˚ and tan 30˚ b) cos 175˚ and cos 185˚ c) sin 43˚ and sin 223˚ Example 3: Determine the measure of angle θ, if cos θ = -0.87. Step 1: Ignore the negative and find the related answer, θR. Step 2: Using the CAST rule, determine the quadrants it could be located it. Step 3: Use one of the following rules to find the answer 180 ...
[DOC File]6.2 TRIG FUNCTIONS -- UNIT CIRCLE
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sec t = 1 / cos t csc t = 1 / sin t cot t = 1 / tan t. Periodic Functions: A function if said to be periodic if . for all θ in the domain of f. The smallest number p for which f is periodic is called the . period. of f. Period of trig functions: Even and Odd trig functions: cosine and secant are even.
[DOC File]Pre-calculus Final Review Study Guide
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13.) tan A = sec A 15.) sec x – tan x = 1- sin x . csc A cos x (7.3) p. 442. Use sum or difference identities to find the exact value of each trigonometric function. 14.) cos 105 ˚ 17.) sin π/12. Find each exact value if 0 < x < π /2 and 0 < y < π /2. 27.) cos (x – y) if cos x = 3/5 and cos y = 4/5. 28.) tan (x – y) if sin …
[DOC File]Teaching Advanced Physics
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Use a calculator to complete the table of in degrees and radians, sin cos and tan when has values in degrees shown in the table: degree in radians sin cos tan 0.01 0.1 0.5 1 5 10 20 70 When (in radians) is small what are suitable approximations for: ...
[DOC File]Trigonometry Project
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With this information, what trig function (cos, sin, or tan) will you use to solve for side XY? Write an equation using A to represent your known angle, ZY to represent your known side, and x to represent the unknown side XY. The final step is once you know the length of XY, adding to XY the additional height.
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