Express the given product as a sum containing only sines or cosines. cos (20) cos (80) *** cos (20) cos (80) = (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression.)

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Q: How many periods of the function y=tan x are there between -7pi/6 and 11pi/6

A: Topic = Trigonometry

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Q: Rewrite the following as a single expression using only sine or only cosine. sin(x) cos(x) + cos(r)…

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Q: tan 270⁰ cos -30° sin 60⁰ tan 90⁰

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Q: Fill in the table. Degrees 0° 30⁰ 45⁰ 60⁰ 90° Sin e Cos 0 Tan 0 Csc 0 Sec 0 Cot 0

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Q: Find sin 2π ( (27) :)) COS 3 Show your work.

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Q: If f(x) = -7x+4 and g(x) = 2 + 3x find a, b, c, and d. a. (f+g)(x), b. (f- g)(x), c. (f+g)(3), and…

A: We have to find function value

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Q: C. State the postulate or theorem that justifies each conclusion. Just write the acronym. 14. 21 =…

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Q: Suppose that Mark is flying a kite with the string tied to his glasses (so that it’s easy to measure…

A: Suppose that Mark is flying a kite with the string tied to his glasses (so that it’s easy to…

Q: Now, simplify 4 cos² ß − 4(1 − cos² ß) by combining similar terms. 4 cos² ß - 4(1- cos² B) В = 4…

A: We have to simplify the given trigonometric equation.

Q: F. Use >,<, or = to compare the measures of angles. 32. mLAED m2CED 33. m2DEB m2DCE 34. m2DEB m2DBE…

A: 32 m∠AED = m∠ CED  here both angle are same  33 m∠DEB &gt; m∠ DCE  here we can direct see that angle…

Q: Find the exact value of cos 0. sin 8= 1- 24 25' πεθε 31 2 ... cos 8= (Simplify your answer,…

A: Given that,     sin θ=-2425, π&lt;θ&lt;3π2

Q: 19. In right triangle PQR, PQ = 12 and QR = 5 cm, what is cos R? 12 5 5 A. B. C. D. 12²2324 13 12 5…

A: This is a problem related to triangle calculation. Based on the general formula and calculation we…

Q: To the nearest degree, what is the measure of the angle in standard position whose ray intersects…

A: Consider

Q: find out at what angle the upper trusses of an isosceles triangular roof chair must be sawn when the…

A: find out at what angle the upper trusses of an isosceles triangular roof chair must be sawn when the…

Q: Use the figure below to answer the following items. EDUCA AS 1. If sin A and cos A W find the…

A: I am attaching image so that you understand each and every step.

Q: cot 180° cos 270⁰ sec 60°

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Q: Write an equation in slope-intercept form for the line with y-intercept 9 and slope 0 08 X ?

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Q: The corresponding medians of two similar triangles are 2 cm and 5 cm. What is the ratio of their…

A: Given that the corresponding medians of two similar triangles are 2 cm and 5 cm. To find the ratio…

Q: Given an acute angle cosx=2/5, use half-angle identity to find the exact value of cos(x/2).

A: Given problem:- Given an acute angle cosx=2/5, use half-angle identity to find the exact value of…

Q: If sin x + 1/ sin x = √√2, then sin²x + 1/ sin²x is equal to

A: We have to find the value of sin^2x + 1/sin^2x

Q: Solve the following trigonometric equations: a) If 0 ≤ 0 ≤ 2π, solve the equation: 4 tan 0 + 2 = 2…

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Q: Evaluate without using a calculator. 7x cos-1(cos X Need Help? Submit Answer Read It

A: Given;  Cos-1[Cos(7pi/4)].

Q: g. sin (5) 2. Prove each of the following using identities, showing all work in the process. a. cos…

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Q: √2 tan 0 + 2 sin 0 tan 0 = 0 (a) all degree solutions (Let k be any integer.) 0 = 360°k, 225° +…

A: Given equation 2 tanθ+2sinθ tanθ=0

Q: Find the size to angle T to one decimal place P 30 m 25 m S 35 m T

A: We will find the size of the angle T of the given triangle in the following step.

Q: (2, x>-3 2. f(x)=-5, x1 10 8 6 6 8 10 -10 8 6 4 21 2 4 6 8 10

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Q: The lengths of two sides of a triangle are 5 in. and 17 in. Which is a possible length for the third…

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Q: 8. 12 m 14 m I i b... Find the area of each figure. 18 m 13 m

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Q: Write an equation in slope-intercept form for the line with y-intercept −9 and slope 7 .

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Q: 5 Which one of the following would be a principal angle in the solution set for cos X ==. 6 Select…

A: I am going to solve the problem by using some simple trigonometry to get the required result of the…

Q: Thank you so much, I'm a little confused on what the exact answers for each one are? Could you put…

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Q: 2. Verify the identity secx - cos x = sin x tan x 3. Find the exact value of sin(2) using the sum…

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Q: B)Convert 26 = tan¹r to cartesian.

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Q: A variation of the subtense bar method that surveyors use to determine larger distances d between…

A: Let d is distance between P and Q, and AB is bisects the line PQ. From the above above figure,…

Q: True or False 1]. Changing the period of a sine function changes its domain. Practice Worksheet:…

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Q: 12. The sides of a 45-45-90 triangle are in the ratio 1:1:√2, while the sides of a 30-60-90 triangle…

A: Answer (12) The sides of a 45° - 45° - 90° triangle are in the ratio 1 : 1 : √2 , while the sides of…

Q: a) Determine the average light levels during one growth cycle. b) Determine the period of the growth…

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Q: If f(x) = -7x+4 and g(x) = 2 + 3x find a, b, c, and d. a. (f+g)(x), b. (f-g)(x), c. (f+g)(3), and d.…

A: A detailed solution is given below

Q: An 8.4m telephone pole stands on level ground and leans 5.1° from the vertical. When the pole's…

A: Using the trigonometric formula: sin(x) = Perpendicular/ Height

Q: 10. Suppose you are given the sequence 625, 1875, 5625... Determine n where S = 6, 150, 625 72

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Q: Sin 2Q=20=2 sin a casa A 3 2.1.2√3/3 X=2√3 x=√√√3²-12 =√8=3√2 COD=

A: Follow next step

Q: for angle A it is known that cos (A) < 0 and csc (A) = 10.  If A is drawn in standard position, in…

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Q: Which Pythagorean triple can be created with the restrictions 4≤x≤5,6≤y≤7, and x≠y? Assume the…

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Q: The perimeters of two similar triangles are 12 cm and 24 cm. Find the ratio of their corresponding…

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Q: Finding solutions in an interval for a trigonometric equation... Find all solutions of the equation…

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