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Verify That the Equation Is an Identity sin(αβ)cos(α+β)=sinαcosαsinβcosβ\sin ( \alpha - \beta ) \cos ( \alpha + \beta ) = \sin \alpha \cos \alpha - \sin \beta \cos \beta

Question 283

Essay

Verify that the equation is an identity.
- sin(αβ)cos(α+β)=sinαcosαsinβcosβ\sin ( \alpha - \beta ) \cos ( \alpha + \beta ) = \sin \alpha \cos \alpha - \sin \beta \cos \beta

Correct Answer:

verifed

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\[\begin{array} { l }
\sin ( \alpha - \...

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