Calculate Sin(15°) in two ways: a)Using half-angle formulae. b)Using angle difference formulae.

Q: Consider the gridlines in this plot to be 5 units apart.   sin(θ) = cos(ϕ) = tan(θ) = tan(ϕ) =

A: We name the triangle ABC.

Q: How is the radian measure of an angle determined?

A:

Q: How is the radian measure of an angle defined?

A: An angle is formed between any two rays that diverges from a common point. It is measured in…

Q: An angle of measure 150° intersects the unit circle at point (-, Y). What is the exact value of…

A: To find the exact value of sin (150°) Since the point  -12,32 is passing through the point and its…

Q: What is the relationship between the radian measure of an angle and the length of the arc…

A: a unit circle is a circle of unit radius—that is, a radius of 1. radius = 1 angle measure(in…

Q: Are the Angles measured in degrees and radians?

A: Yes, Angles are measured in both degrees and radians.

Q: Determine two other angles that have the same trigonometric ratios as each given angle. a) sin 60°…

A:

Q: Find the exact value by using a half-angle identity. sin 75°

A:

Q: Solve for the missing side or angle using Trig Ratios (sin, cos, tan) 3. 4.

A:

Q: ne, and tangent of the angle without using a calculator. 177 sin(e) = cos(e) = tan(e) =

A: Topic:- trigonometry ratios

Q: Use the trigonometric ratio sin A 0.38 to determine which angle of the triangle is ZA. (GSRT.7) 1.2…

A: The hypotenuse of the given right angled triangle is:  1.3

Q: what is the exact value of sin (165*) using the half angle identities

A:

Q: What would the distance value be using the law of cos?

A: This question is related to triangles, we will use law of cosines to solve this problem.

Q: Find the exact value by using a half-angle identity. sin 75° ① 专业 這次難 這次的

A: We will solve the required.

Q: Use a calculator to find the value of the acute angle θ to the nearest degree, sin u = 0.2974

A: According to the question, we have to find the value of sin u=0.2974 to the nearest degree using…

Q: 1. Write a list of angle degree measurements between 0° and 180° whose sin value can most easily be…

A:

Q: Use the law of sines to find the measure of the indicated angle

A:

Q: In AUVW, the measure of^ZW=90°, WV = 65, VU = 97, and UW = 72. What ratio %3D represents the sine of…

A: topic - trigonometric ratios sine of V =UW/VU=72/97

Q: What is the exact radian measure of an angle measuring p degrees?

A: To define the exact radian measure of an angle measuring p degrees.

Q: Find the exact trigonometric ratios for the angle x whose radian measure is -3pi

A:

Q: The radian measure of an angle of 244 degrees is

A:

Q: the acute angle (in radians) between the two straight lines y=3x +2 and y=4x+7 is closest to what…

A:

Q: Find sin 0, where 0 is the angle shown.

A:

Q: Use the given point on the terminal side of angle theta, to find the value of the tangent: (-14, 16)…

A: given point is -14,16 on the terminal side of the angle θ find tanθ

Q: Find the reference angle for radians 11x 5

A:

Q: What is the reference angle associated with cos 240o ?

A: Answer is- -1/2 Explanation is given below....

Q: The length of the arc intercepted by a central angle of 5 radians in a circle of radius 75 is   The…

A:

Q: Find the angle 0 between v= cos 120°i+ sin 120°j and w = cos 135°i+ sin 135°j. If necessary, round…

A: Using trigonometric  formulas

Q: On the basis of the drawing provided, complete the Law of Sines. sin a a A C b

A: we have the given figure as the incomplete statement is sinαa=

Q: The angle between 0 and 2Pi(360) in radians that is terminal with the angle 20/7Pi in radians is…

A: To find the angle between 0 to 2π in radians which is terminal with the angle 20π7 in radians. To…

Q: Are the angles measured in radians?

A: Given: Are the angles measured in radians?

Q: In terms of the cosecant of a positive acute angle, what is the expression for csc 240°?

A: Given expression is

Q: The angle between 0 and 2T in radians that is coterminal 55 T in radians is 8 with the angle

A:

Q: Which of the 3 trigonometry functions has the largest value when evaluating angle A? (sin A,cos A ,…

A: Explanation of the answer is as follows

Q: In AGHI, the measure of ZI=90°, IH = 33, HG = 65, and GI = 56. What ratio represents the sine of ZG?

A:

Q: Express as a cofunction of a complementary angle sin 46 degrees 37 inches

A: sin 46 degrees 37 inches To Express as a cofunction of a complementary angle

Q: If the terminal arm of an angle θ, in standard position, lies on the left side of the y-axis than…

A: cos θ=

Q: use reference angles to evalute tan 210 degrees

A:

Q: Identify the quadrant in which the terminal side of the angle must lie under the following…

A: Use quadrant to solve this trigonometric problem

Q: What angle between 0 and 2pi radians has its cosine equal to 1/2?

A:

Q: What’s the smallest positive degree angle measure equivalent to sin^-1(0.391)?

A: sin^-1(0.391) = 0.4017

Q: What is the measure in radians of an angle subtended by an arc of a circle which is of its…

A:

Q: A boat starts off 28 miles directly west from the city of Morristown. It travels due south at a…

A:

Q: If the terminal side of angle t goes through the point (-. on the unit circle, then what is sin(t)?…

A: We will solve the problem

Q: What is the exact radian angle measure for pi degrees? the decimal approximation?

A: To convert an angle in degrees to radians, multiply the angle by,

Q: What is the radian measure of an angle of 230º?

A: We have to calculate Radian Measure of an angle of 230°

Q: What is the approximate radian measure of an angle with a degree measure of 59.6º?

A: To convert degree in to radian, multiply by π/180°. Simplify it

Q: Find the exact value of sin(- ). Explain your answer using reference angle.

A:

Q: What is the radian measure of a 300º angle

A:

Q: In a circle with a radius of 10 inches, an arc is intercepted by a central angle of 2 radians. What…

A: Given radius 10 inches Centre angle = 2 radian