In Exercises 15-22, write each expression as the sine, cosine, or tangent of a double angle. Then find the exact value of the expression. 15. 2 sin 15° cos 15° 16. 2 sin 22.5° cos 22.5° 17. cos? 75° - sin² 75° 18. cos 105° - sin² 105° 19. 2 сos? 20. 1 - 2 sin 12 1 8. 2 tan 12 2 tan 8. 21. 22. tan 12 tan? 8 1 1.

Q: Use the given conditions to find the exact values of  sin(2u),cos(2u),and tan(2u)  using the…

A:

Q: Write the expression as the sine, cosine, or tangent of an angle. tan(1.9) – tan(4.2) 1 + tan(1.9)…

A:

Q: Find the exact value using half-angle formulas. 7 sin (?/8)

A:

Q: Evaluate the sine, cosine, and tangent of the angle without using a calculator. 117 6.

A:

Q: Kim said she found three angles for which sin &= Is that possible if 0° < OS 360°? Explain.

A: Givensinθ=-37As we know that sinθ is positive in the 1st and 2nd quadrant while sin(θ) is negative…

Q: Consider the angle shown below with an initial ray pointing in the 3-o'clock direction that measures…

A:

Q: We will evaluate sin(315°) by finding the reference angle of 315°. What the reference angle of 315°?…

A: Solution:

Q: Use a reference angle to write sec 290 (where the angle is measured in degrees) in terms of th…

A: Here is given angle is 290 degree which is lies on 4quadrent

Q: In Exercises 39–42, use a calculator to find the value of the acute angle 0 in radians, rounded to…

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

Q: Simplify the expression sin (cos (300)), where the angle is measured in degrees. Do not include the…

A:

Q: hich set of radian angle measures is equivalent to sin−1⁡(−12)?

A: arcsin-12  :  No Solution for x∈ℝReal domain for arcsinx is -1≤ x ≤1

Q: 55.2 6.3 니2.2% a

A: We use sine law

Q: In Exercises 55 and 56, find the measure of the angle in radians and degrees. 55. sin (0.6) 56. tan…

A: Given that we need to measure the following angles in radians and degrees. Therefore sin-1(0.6) =…

Q: Write the expression as the sine, cosine, or tangent of an angle. sin 70° cos 5° + cos 70° sin 5°

A:

Q: Write the expression as the sine, cosine, or tangent of an angle. tan(1.1) – tan(4.7) 1 + tan(1.1)…

A: Given expression is, tan(1.1)-tan(4.7)1+tan(1.1)tan(4.7)

Q: Write the expression as the sine, cosine, or tangent of an angle. tan(7/15) + tan(4z/5) 1 –…

A:

Q: Convert the following angle from degrees to radians. Express your answer in simplest form. 165°

A: conversion of degrees to radians

Q: Write the expression as the sine, cosine, or tangent of an angle. sin 50° cos 5° + cos 50° sin 5°

A:

Q: In Exercises 35–38, use a calculator to find the value of the acute angle 0 to the nearest degree.…

A:

Q: In Exercises 2-4, convert each angle in degrees to radians. Express your answer as a multiple of T.…

A: Given: 2.15∘3.120∘4.315∘

Q: Determine whether the statement "The Law of Cosines is similar to the Law of Sines, with all the…

A: "The Law of Cosines is similar to the Law of Sines, with all the sines replaced with cosines." The…

Q: The cosine of the angle 9 in the figure is (-1/1, -21/2²) √2 3 2√2 3 1 3 Ө Ф O -2√/2 3 →→→X 1 3 O…

A:

Q: 5. If sin 47°=.731, name another angle in the same quadrant that has the same sine value.

A: It is not possible.

Q: Write the expression as the sine, cosine, or tangent of an angle. tan(t/20) + tan(37/5) 1 -…

A: Using the following formulae :- tan(A + B) = (tanA +tanB)/(1-tanA tanB)  sin (A+B)= sinAcosB +…

Q: Write the expression as the sine, cosine, or tangent of an angle tan(7/15) + tan(27/5) 1. -…

A: In this question, following simple equation is used- tan(x+y)= (tanx + tany)/(1-tanx*tany)

Q: EValuate:- (sin?G coszoldo

A: On solving this we will get:-

Q: Write the expression as the sine, cosine, or tangent of an angle. cos 140° cos 20° – sin 140° sin…

A: Given expression is cos140°cos20°-sin40°sin20° we have to write the expression as the sine , cosine…

Q: In Exercises 25-32, write each expression as the sine, cosine, or tangent of an angle. Then find the…

A:

Q: Use law of sines to find side c.   13.05, 23.05, 33.05, 43.05 or 5? See attached.

A:

Q: 4. If sin 47°=.731, name another angle in a different quadrant that has the same sine value.

A: We know sin180°-θ = sin θ

Q: Write the expression as the sine, cosine, or tangent of an angle. cos cos - sin sin 5

A: We know that  cosA+B=cosAcosB-sinAsinBA=2π7B=7π5

Q: evaluate sin(A-B)?

A:

Q: Write the expression as the sine, cosine, or tangent of an angle. tan(t/20) + tan(4/5) 1- tan(1/20)…

A:

Q: In triangle ABC with sides a, b, and c the Law of Sines states that -Select-- Select- -Select-- a…

A:

Q: Write the expression as the sine, cosine, or tangent of an angle. sin(x) cos(8x) + cos(x) sin(8x)

A: Sin (A+B) = Sin A x Cos B + Cos A x Sin B

Q: Write the expression as the sine, cosine, or tangent of an angle. tan(7/12) + tan(47/3) 1- tan(7/12)…

A: Trigonometric identities are relations that hold true for any right triangle. Some of these…

Q: Write sin(275°) in terms of the sine of a positive acute angle. Provide your answer below: sin()

A: In the  IVth quadrant sin(θ) is negative:   Acute angle: it is an angle whose measure is less than…

Q: Write the expression as the sine, cosine, or tangent of an angle. 47T cos 47T sin CoS sin

A:

Q: Write the expression as the sine, cosine, or tangent of an angle cos 140° cos 50° – sin 140° sin 50°

A: Formula:

Q: 9. Which set of radian angle measures is equivalent to sin (-)? 7T 4 等,号 좋, 풍 11T 6 7T 5T 6

A: sin-1-12

Q: 1 point Find all 6 trig ratios for angle A 25m 9m B 16m sin A = 16/25, cos A = 9/25, tan A = 16/9,…

A: We have to find trigonometric ratio.

Q: 5% . Convert What are the sine, cosine and tangent of the angle radians to degrees. Which quadrant…

A: To convert the given radian angle into degrees.

Q: For Exercises 21–28, information is given about ΔABC. Determine if the information gives one…

A:

Q: Write the expression as the sine, cosine, or tangent of an angle. sin cos 7 cos 5 sin 5

A: Consider the given expression as, E=cos4π7cos7π5-sin4π7sin7π5 Consider the required formulae,…

Q: Write the expression (tan 50° - tan 20°)/(1 + tan 50° tan 20°) as the sine, cosine, or tangent of an…

A: Given:          (tan50∘−tan20∘)(1+tan50∘tan20∘)

Q: 9. Which set of radian angle measures is equivalent to sin (- 4 O 4, 7л 11т 6

A: given angle sin-112 let y=sin-112 therefore siny =12

Q: Write the expression as the sine, cosine, or tangent of an angle. tan 24° + tan 22° 1- tan 24° tan…

A: