Verify That Each Equation Is an Identity $$\tan^ 2 u ( 1 + \cos ( 2 u ) ) = 1 - \cos ( 2 u )$$

question 357

Essay

Verify that each equation is an identity.
- $$\tan^ 2 u ( 1 + \cos ( 2 u ) ) = 1 - \cos ( 2 u )$$

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Definitions:

Shortage/Surplus

A market condition where the quantity of a good or service supplied is not equal to the quantity demanded; shortages occur when demand exceeds supply, and surpluses occur when supply exceeds demand.

Price Floor

A government or regulatory-imposed minimum price that can be charged for a good or service.

Quantity Demanded

The specific amount of a good or service that consumers are willing to purchase at a given price, at a particular time.

Quantity Supplied

The total amount of a good or service that producers are willing and able to sell at a given price level in a given time period.