Verify the Identity $$\frac { \cos ( \alpha + \beta ) } { \cos \alpha \sin \beta } = \cot \beta - \tan \alpha$$

question 216

Essay

Verify the identity.
- $$\frac { \cos ( \alpha + \beta ) } { \cos \alpha \sin \beta } = \cot \beta - \tan \alpha$$

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Definitions:

Carl Von Clausewitz

A Prussian general and military theorist who deeply influenced 19th and 20th-century military strategy and the philosophy of war, best known for his work "On War."

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The activities associated with the governance of a country or area, especially the debate and conflict among individuals or parties having or hoping to achieve power.

War

An organized and often prolonged conflict that is carried out by states or non-state actors, involving large-scale violence and disturbances to social order.

Crimean Peninsula

A major land mass on the northern coast of the Black Sea that is geopolitically significant and was annexed by Russia from Ukraine in 2014, leading to international controversy.