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Complete the Identity cos⁡(α−β)sin⁡αcos⁡β=?\frac { \cos ( \alpha - \beta ) } { \sin \alpha \cos \beta } = ?

Question 321

Multiple Choice

Complete the identity.
- cos⁡(α−β) sin⁡αcos⁡β=?\frac { \cos ( \alpha - \beta ) } { \sin \alpha \cos \beta } = ?


A) cos⁡α−sin⁡β\cos \alpha - \sin \beta
B) cot⁡α−1\cot \alpha - 1
C) cot⁡α+tan⁡β\cot \alpha + \tan \beta
D) cos⁡α+sin⁡β\cos \alpha + \sin \beta

Correct Answer:

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