Establish the identity cos (a + B) + cos (a-B) = 2 cos a cos BWhich of the following four statements establishes the identity?O A. cos (oa + 6) + cos (oa-B).%3D(cos a cos 6- sin a sin B) + (cos a cos B+ sina sin B)%3D2 cos a cos BO B. cos (a+ B)+ cos (a - B)%3(sin a cosB+ cos a sin B) + (sin oa cos B- cos a sin B)3D2COS a cos BO C. cos (a+B)+ cos (a-B)(sin a cos B+ cos a sin B) - (sin cos B- cos a sin B)3D2COS a cos BOD. cos (a+ B) + cos (a-B)3(cos a cosB+ sin a sin B)-(cos a cos B- sin a sin p)3D2COS a cos B

Answered: Image /qna-images/answer/7913634d-1e84-43f9-9331-950b70bae7bd.jpg

Establish the identity cos (a+ß) + cos (a-B) = 2 cos a cos B. Which of the following four statements establishes the identity? O A. cos (a+ B) + cos (a-ß) = (cos a cos6- sin a sin B) +(cos a cos B+ sin a sin B) =2 cos a cos B O B. cos (a+ B) + cos (a-B) = (sin a cos ß+ cos a sin B) + (sin a cos B- cos a sin B) =2 cos a cos B O C. cos (a+ B) + cos (a -B) =(sin a cos B+ cos a sin B)-(sin a cos B- cos a sin B) =2 cos a cos B O D. cos (a+ B) + cos (a-B) 3(cos a cosß+ sin a sin B)-(cos a cos B- sin a sin p) =2 cos a cos B

Establish the identity cos (a+ß) + cos (a-B) = 2 cos a cos B. Which of the following four statements establishes the identity? O A. cos (a+ B) + cos (a-ß) = (cos a cos6- sin a sin B) +(cos a cos B+ sin a sin B) =2 cos a cos B O B. cos (a+ B) + cos (a-B) = (sin a cos ß+ cos a sin B) + (sin a cos B- cos a sin B) =2 cos a cos B O C. cos (a+ B) + cos (a -B) =(sin a cos B+ cos a sin B)-(sin a cos B- cos a sin B) =2 cos a cos B O D. cos (a+ B) + cos (a-B) 3(cos a cosß+ sin a sin B)-(cos a cos B- sin a sin p) =2 cos a cos B

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter6: The Trigonometric Functions

Section: Chapter Questions

Problem 16RE

See similar textbooks