Use a sum or difference formula to find the exact value of the following. 31n 11n 31n + sin 18 11a sin 18 cos cos 36 36

Q: Which of these is equal to cos 19? A) sin 71° B) sin 81° C. cos 71° D) Cos 81°

A: We have to find cos19

Q: 2.Solve for the given variable (to 1 decimal place) in each of the following: 10 65 b. (a) sin 35°…

A: Simplify the expression than substitute value each trigonometric ratios and solve.

Q: Use the triangle below to answer #5 and #6 14 5. Which of the following equations can be used to…

A: 5. Since the opposite side is x and adjacent side is 14, Therefore we can use tan71°=x14 to solve…

Q: 2. Express each of the following expressions as a single trigonometric ratio and then evaluate to an…

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Q: Find the exact values of the following a-h and show your complete Solution. a. cos 585° b. csc 600°…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Which of these equations could be used to find x? CHOOSE ALL that a 55 23cm O cos 55=23/x O sin…

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Q: nd the exact values of the following sec( 765) 7.7 cot 6 sin(- 90°) tan(60°) - cos(600 ese:/1|+…

A: We have to find the exact value of the given following conditions

Q: Solve the following for 0, in radians, where 0 <0 < 2n. -4 sin? (0) – 7 sin(0) + 7 = 0 Select all…

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Q: 7 If cos(?)= - andtan(g)<0, which of the following is the exact value of sin(27)? 14 49 81 56/2 81…

A: If cosζ=-79 and tanζ&lt;0, then we have to find which of the following is the exact value of sin2ζ.

Q: 14) Find the exact values for the following. Be sure to simplify and rationalize when needed. a)…

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Q: In attempting to solve for x in the problem at the right, students responded with a variety of…

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Q: Express the following product as a sum. 2 sin(8z) sin(6r) Provide your answer below: 8. 9. sin sec 4…

A: The solution is:

Q: 68. Apply the double-angle formula to prove: (a) cos (2 + /2 2 (b) cos 16 /2 + v2+. 2 and of cos for…

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Q: ind all solutions to the following equation: 8 sin x -1=6 sin x

A: We need to find all solution of the equation 8 sin x -1=6 sin x.

Q: 9. Find the exact value of each expression. (a) sin 8° cos 22° + cos 8° sin 22° (b) sin 75° (c) sin…

A: (a) sin8°cos22°+cos8°sin22°=sin8°+22°=sin30°=12=0.5

Q: 5. Ari was given the following question: "Solve for 0 < 0 < 2n, to one decimal place, or exact…

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Q: Solve the following for 0, in radians, where 0 < 0 < 2n. 4 sin (0) – sin(@) – 4 = 0 Select all that…

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Q: 2. Use the sum and difference formulas to evaluate the following. 5TT COS 12 sin (-) 7Tt а. b. 12

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Q: Use a sum or difference formula to find the exact value of the following. 22n 22n cos cos + sin sin…

A: From the given problem:    cos22π21cos5π7+sin22π21sin5π7   From the trigonometric identity:…

Q: 10. Which equation could be used to find the value of x? a. cos 58° = 18.9 b. sin 32° 18.9 16 32 16…

A: Given figure is: x is the base adjacent to the angle 90°-32°=58°. The length of the hypotenuse is…

Q: Which of the following correctly expresses sin (70) + sin (30) as a product? Select the correct…

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Q: Use a sum-to-product formula to find the exact value of cos(285°) – cos(15°)

A: We will need the formula  With A=285 and B=15

Q: morty gives the following solution to find 0 such that QIII that 0=cos^-1(-.8673) 0=2.62 degrees…

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Q: Use a sum or difference formula to find the exact value of the following. 31A 7L 31 7TL sin CoS +…

A: Given : sin31π60cos7π30 + cos31π60sin7π30

Q: Use a sum or difference formula to find the exact value of the following. 19n 197 sin COS 30 sin COS…

A: Given that sin19π30cos7π15-cos19π30sin7π15we know that…

Q: Use a sum or difference formula to find the exact value of the following. 25л 67 25 t sin cos cos…

A: NOTE: Refresh your page if you can't see any equations. . use the formula

Q: If sin(a)=0.2sin and cos(b)=0.75 determine the values of the following expressions (round to four…

A: Given data: The given value of the sine function is sin(a)=0.2. The given value of the cosine…

Q: Find all solutions to cos(80) – cos(20) = sin(50) on 0 <0 < 3 0 = 0, Give your answers as a list…

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Q: Solve the following over the interval 0≤ θ ≤ 360°.  1. Sin(2θ) = -0.7843 2. 4cos(2θ) + 2sinθ…

A: (a). Given, Since the angle is negative, hence our desired angle is obtained by 360 – 25.8280 =…

Q: Find the exact value of cos 165° by writing 165° as 120° + 45° and using a sum identity. -1 + v? 2 4…

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Q: Use a sum or difference formula to find the exact value of the following. 25 Tt 25T + sin 42 cos Cos…

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Q: 7. Simplify the following formula sin140° cos40° + cos140° sin 40°

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Q: Sin () 12

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Q: Find the exact value of each of the following under the given conditions. 6/61 4 0 < a <- 5' <;; cos…

A: Formulas for  Sin(A+B)= sinAsinB+cosAcosB Cos(A+B)= cosAcosB-sinAsinB Sin(A-B)= sinAsinB-cosAcosB…

Q: Which trig ratio will allow you to solve for x? 13 29° O sin 29 = 13 O cos 29 13 13 O sin 29 = 13…

A: We have to find which trigonometric ratio will allow solving for x.

Q: photo attached

A: To prove:

Q: 40 b. 4 sin? () + 8 cos () – 7 = 0 for 0 < 0 < 360°

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Q: Next Using a double-angle or half-angle formula to simplify the given expressions. (a) If 2…

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Q: Which of the following correctly expresses sin 0 + sin (70) as a product? Select the correct answer…

A: sinθ+sin7θ sin4θ - 3θ+sin4θ + 3θ Now, using the formula, sin(A + B) = sin A cos B + cos A sin B…

Q: Find the exact value of the following expression:   sin(pi/12)cos(7pi/12) - cos(pi/12)sin(7pi/12)

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Q: 3. If sin e = -2/3 and 180° & e s 270°, find the exact value of the following: (a) sin 2 e = (b) cos…

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Q: Use a sum or difference formula to find the exact value of the following. 11 T 11 t sin 42 sin cos 7…

A: To find the value of  sinABC=sinBAC=sinCABsin90o16.76=sinB5=sinC16116.76=sinB5=sinC16⇒sinB=516.76,…

Q: If cos B = 1/7, which is true?     sin (90 – B) = 1/7     sin B = 1/7     cos (90 – B0 = 7/1…

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Q: Use a sum or difference formula to find the exact value of the following 2n sin + cos sin cos - 3 12…

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Q: Given that sinα = - 3/5 cosβ = 7/25, where π < α < 3π/2 < β < 2π, find each of the following.  a.…

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Q: Find all solutions to cos(3ø) – cos(4) = sin(26) on 0<p<2π $ = Give your answers as a list separated…

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Q: Find the values of the following. 1.sin ( 3 +  5j)

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Q: Use a sum or difference formula to find the exact value of the following. 17n sin cos 36 5T 17t sin…

A: You know, According to the sum formula:

Q: find the exact value of the given expression cos(7pi/12)cos(pi/6)-sin(7pi/12)sin(pi/6)

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Q: 4. Find the exact value of each of the following expressions. Do not round your answers. (a)…

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