+ Verify the identity. cos (a-ẞ) =1+ tan a tan B cos a cos ẞ Write the left side numerator in terms of a sum or difference formula for sine or cosine. cos (α-B) cos acos B cos a cos ẞ Rewrite the expression found in the previous step by separating the denominator. cos acos ẞ sin asin ẞ The expression from the previous step then simplifies to 1+ tan a tan ẞ using what? OA. Even-Odd Identity OB. Reciprocal Identity OC. Pythagorean Identity #3 80 F3 $ £4 4 DOD 000 F4 F5 MacBook Air % 25 6 F6 F7 27 & * 8

+ Verify the identity. cos (a-ẞ) =1+ tan a tan B cos a cos ẞ Write the left side numerator in terms of a sum or difference formula for sine or cosine. cos (α-B) cos acos B cos a cos ẞ Rewrite the expression found in the previous step by separating the denominator. cos acos ẞ sin asin ẞ The expression from the previous step then simplifies to 1+ tan a tan ẞ using what? OA. Even-Odd Identity OB. Reciprocal Identity OC. Pythagorean Identity #3 80 F3 $ £4 4 DOD 000 F4 F5 MacBook Air % 25 6 F6 F7 27 & * 8

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter6: The Trigonometric Functions

Section: Chapter Questions

Problem 14RE

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