Answer number 2 and 3 the sum and difference identities of sine, cosine, and tangent.Determine the exact value of a trigonometric function using the sum and differenceidentities.Use sum and difference identities to write expressions as a single trigonometric funeangle.WHAT I KNOWDirections: Read each item carefully. Write the letter of the correet answer on your notebe1. Which of the following identities is correct.A. sin (A+B)=sinA sinB + cosA cos BB. cos (A+B)=sinA sinB2.Find the exact value of the expression: sin(cos() - cos(sin(-).A. -C sin (A+B)=sinA cosB + cosA sin BD. cos (A-B)=sinA cosB- cosA sinBCOSA cosBV3D.B.3. Use Sum or Difference Identities to find the exact value of cos(75)V6+V2C.A.B.D. Vô v24.Write the following expression as the sine, cosine, or tangent of an angle.cos175° cos55° + sin 175°sin55°.A. sin 120°B. cos 120°C. sin 230°D.cos 230°5.The expression cos 4x cos 3x + sin4x sin3x is equivalentA. sin xB. sin 7xC. cos xD. cos 7xWHAT'S INActivity: Use the Unit Circle below to find the following.Unit Circle

Now, simplify the given expression with help of sum and difference identities. Therefore, the…

2.Find the exact value of the expression: sin("cos() - cos)sin(). CosB D. cos (A-B)=sinA cosB cosA si A. - 3. Use Sum or Difference Identities to find the exact value of cos(75°) В. C. D. v3 A. V6+V2 B. V6-V2 4 D. 4.Write the following expression as the sin

2.Find the exact value of the expression: sin("cos() - cos)sin(). CosB D. cos (A-B)=sinA cosB cosA si A. - 3. Use Sum or Difference Identities to find the exact value of cos(75°) В. C. D. v3 A. V6+V2 B. V6-V2 4 D. 4.Write the following expression as the sin

Trigonometry (MindTap Course List)

10th Edition

ISBN:9781337278461

Author:Ron Larson

Publisher:Ron Larson

Chapter1: Trigonometry

Section: Chapter Questions

Problem 4T: Take this test as you would take a test in class. When you are finished, check your work against the...

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Question

Answer number 2 and 3

the sum and difference identities of sine, cosine, and tangent.
Determine the exact value of a trigonometric function using the sum and difference
identities.
Use sum and difference identities to write expressions as a single trigonometric fune
angle.
WHAT I KNOW
Directions: Read each item carefully. Write the letter of the correet answer on your notebe
1. Which of the following identities is correct.
A. sin (A+B)=sinA sinB + cosA cos B
B. cos (A+B)=sinA sinB
2.Find the exact value of the expression: sin(cos() - cos(sin(-).
A. -
C sin (A+B)=sinA cosB + cosA sin B
D. cos (A-B)=sinA cosB- cosA sinB
COSA cosB
V3
D.
B.
3. Use Sum or Difference Identities to find the exact value of cos(75)
V6+V2
C.
A.
B.
D. Vô v2
4.Write the following expression as the sine, cosine, or tangent of an angle.
cos175° cos55° + sin 175°sin55°.
A. sin 120°
B. cos 120°
C. sin 230°
D.cos 230°
5.The expression cos 4x cos 3x + sin4x sin3x is equivalent
A. sin x
B. sin 7x
C. cos x
D. cos 7x
WHAT'S IN
Activity: Use the Unit Circle below to find the following.
Unit Circle

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