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[DOC File]Pre-Calculus
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8. If the area of a sector is 15 in² and its central angle is 0.2 radians, then find a) the radius of the circle and b) the arc length of the sector. Write answers in exact form. 9. Determine the angular velocity, w , of each situation. Formula: . a. 1.8 revolutions in 9 seconds b. 250 revolutions in 32 minutes. 10.
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[DOC File]Hello gentlemen - Marquette University High School
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So the component form of this vector is < 4 – 0, -2 – 0> or . Now let’s find the magnitude. Magnitude is length, more or less. The text does provide some “formal” formulas, but I’d rather that you consider what you already know, that is the Pythagorean Theorem. (In any right triangle, square each leg and add the squares.
arctan 1 in radians

[DOCX File]6.2 Trig. Functions of Acute AnglesPre-Calculus
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6.2 Trig. Functions of Acute AnglesPre-Calculus. Learning TargetsKnow and apply the six trigonometric ratiosSolve right triangles using the six trig. ratiosKnow the ratios of the sides of the 30-60-90 special right triangleKnow the ratios of the sides of the 45-45-90 special right triangleApply the ratios of the special right triangles to real life application questions.
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[DOC File]Lecture 4﷓1 ﷓ Equilibrium of Rigid Bodies STUDENT …
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Σ Fy = 0 = 563.8 lb 2324 lb + 1760 lb = 0.20 0 OK Sample Problem 4.4 - The frame shown supports the roof of a small building. Knowing that the tension in the cable is …
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[DOC File]Paper Reference(s)
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(a) Show that the equation f(x) = 0 has only one real root. (3) (b) Show that the real root of f(x) = 0 lies between 1 and 2. (2) (c) Obtain an approximation to the real root of f(x) = 0 by performing two applications of the Newton-Raphson procedure to f(x) , using x = 2 as the first approximation. Give your answer to 3 decimal places. (4)
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[DOCX File]Mr Stevenson's Maths Class
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Method for finding second angle consistent with (either of) theirtrig. equation(s) in radians.Must be in range 0 ... arctan = 56.3° (= ... Answers given in radians:Deduct a maximum of 2 marks (misread) from B and A marks.(Deduct these at first and second occurrence.) ...
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[DOC File]A surveyor determines that the angle of elevation of a ...
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1. Sketch the angle. Evaluate the function at the given angle. (e.g..cos 90o = 0 ) i) cos tan sin 150o sec. ii) sin tan 60o. iii) sin sin cos 360o 2. Give the amplitude, period of . …
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[DOC File]When A Ruler Is Too Short - NASA
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Conversion of the measured parallax angle to radians is easy: [rad] = ( [deg]/360) x 2π ≈ tan , to be used in equation (2). Note that equation (1), rewritten to = arctan (R/D) = tan-1(R/D) is used to compute the scale factor, where R is the separation of the lines on the background chart and D is the distance to each row of seats in your ...
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[DOC File]Paper Reference(s)
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In part (b) many could obtain the correct argument but many found arctan (0.5) = 0.46 or arctan (–0.5) = –0.46 and stopped. Candidates should be encouraged to consider where the point is on the Argand Diagram and use appropriate trigonometry.
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[DOC File]7-3 The Sine and Cosine Functions
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Degrees radians Sin Cos 0 0 1 30 1/2 45 60 1/2 90 1 0 The graph of Sine and Cosine Functions. y = Sin x. Demonstration of Sine Graph (Manipula Math) Notice that this graph is a periodic graph. It repeats the same graph every 2 units.
arctan 1 in radians

Arctan 0 in radians