I can use the sum and difference formulas for cosines and sines to derive the product-to-sum formulas.Determine whether the statement makes sense or does not make sense, and explain your reasoning.

Q: Use the Addition Formula for Sine to prove the Double-Angle Formula for Sine.

A: The addition formula for sine is By replacing b by a

Q: State the sum and difference formulas for sine, cosine, and tangent

A:

Q: Explain how to find the value of sin 390° and cos (- 45°)using the unit circle.

A: Given, Find the value of sin390°and cos(-45°) using the unit circle:

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

A:

Q: From the list below find the expression equivalent to sin9x

A: see 2nd step

Q: Explain how a right triangle can be used to find the exact value of sec ( sin ).

A: Consider the right triangle as Using Pythagoras rule x=52-42=25-16=9=3

Q: 55.2 6.3 니2.2% a

A: We use sine law

Q: Given that cose = - and sine is negative, choose 28 by clicking.

A:

Q: Where can you use the law of cosines in real life?

A: Here is a real-life example of the law of cosine.

Q: Use the formulas for lowering powers to rewrite the expression in terms of the first power of…

A:

Q: Find an angle 0 with 0° < 0 < 360° that has the same: Sine as 30°: 0 = degrees Cosine as 30°: 0 =…

A: To determine: 1) Sine as 30 degrees and 2) cosine as 30 degrees.

Q: Write the expression in terms of sine and cosine, and simplify so that no quotients appear in the…

A:

Q: Use the triangle method to simplify sin 2sec-1 2

A:

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: If sinθ=0.118, find θ, writing your answer to the nearest degree.

A:

Q: Use a half-angle formula to find sin(105°). Simplify your answer completely.

A:

Q: If you are given a point on the terminal side of angle 6, explain how to find sin 6.

A: Consider the provided information, Let we have a point x,y.

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

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

Q: use a half-angle formula to find sin(105degrees).  Simplify your answer completely.

A:

Q: Determine whether the statement "Using sum and difference formulas, I can find exact values for…

A: To determine whether the statement makes sense or not.

Q: Explain why the sine or cosine of an acute angle cannot be greater than or equal to 1.

A: Let us consider a right angled triangle as below. Here θ is an acute angle. In the right angled…

Q: Find an angle 0 with 0° < 0 < 360° that has the same: Sine as 250°: 0 = degrees %3D Cosine as 250°:0…

A: In this question we have to find an angle θ with 0° &lt; θ &lt; 360° that has the same

Q: Use words to describe the formula for:the power-reducing formula for the sine squared of an angle.

A: Here to describe the formula for "the power-reducing formula for the sine squared of an angle". That…

Q: The sum of the sines of two angles A and B is 3/2 while the sum of the cosines of the angles is √3…

A: Given  Sin(A)+Sin(B)=3/2 Cos(A)+Cos(B)=(3^(1/2))/2

Q: photo attached

A: To determine the double angle identity.

Q: Rewrite the expression tan x csc x cos x by changing to sines and cosines. Then simplify the…

A: Given expression is tanxcscxcosx.

Q: How can I solve this? Write each expression in terms of a sine, cosine, or tangent of a single…

A: our objective is to find the value of the given expression

Q: Use a special right triangle to find the sine and cosine of a 30° angle.

A:

Q: tan( (60° – 30°)

A:

Q: when it is necessary to use the Law of Cosines instead of the Law of Sines.

A: This question is based on Law of Cosine and sine rule.

Q: If you are given a point on the terminal side of angle θ, explain how to find sin θ.

A: Consider a point (a,b)

Q: What are the reciprocals of the sine and cosine ?

A: we have to determine the reciprocals of the sine and cosine.

Q: Simplify completely, make sure your angle is positive.

A:

Q: Express the given sum or difference as a product of sines and/or cosines. sin 90- sin 5e

A:

Q: I used a half-angle formula to find the exact value of cos 100°.Determine whether the statement…

A: Given:cos 100°

Q: Write the expression in terms of sine only. sin(3x)+cos(3x)

A:

Q: If you know the sine value for a given angle, how can you quickly find the cosecant value for that…

A: See attached file for a detailed explanation and I also give an example so you can easily…

Q: Use the power reducing formulas to rewrite Sin'x cosʻx in terms of the first power of cosine X,…

A: We use the formula 2cos2(a) = 1+cos(2a) 2sin2(a) = 1- cos(2a)

Q: Express the given sum or difference as a product of sines and/or cosines. sin 0 + sin 90

A:

Q: After the difference formula for cosines is verified, I noticed that the other sum and difference…

A: Yes, it makes sense.      Reason 1:…

Q: Find an angle 0 with 0° < 0 < 360° that has the same: Sine as 80°: 0 = degrees Cosine as 80°: 0 =…

A:

Q: Rewrite the expression sin* 70 entirely in terms of cosine. Simplify as much as possible. --

A:

Q: Verify the identity by converting the left side into sines and cosines. (Simplify at each step.)

A: Our Aim is to verify the identity by converting the left side into sinesand cosines.5 sec (x)- 5 cos…

Q: What is the cosine theta > 1 what should I do? For example cosine theta = 720/324?

A:

Q: Determine whether the statement makes sense or does not make sense, and explain your reasoning.

A: (sec x+1)(sec x-1)sin2x

Q: Write an original problem that can be solved using the Law of Sines. Then solve the problem.

A: Query- Write an original problem that can be solved using the Law of Sines. Then solve the problem.…