Verify That the Equation Is an Identity $$\frac { \sin ( \alpha - \beta ) } { \sin \alpha \sin \beta } = \cot \beta - \cot \alpha$$

question 88

Essay

Verify that the equation is an identity.
- $$\frac { \sin ( \alpha - \beta ) } { \sin \alpha \sin \beta } = \cot \beta - \cot \alpha$$

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