Prove the Following Theorem $n$ Is Even If and Only If $n ^ { 2 }$

question 193

Essay

Prove the following theorem: $n$ is even if and only if $n ^ { 2 }$ is even.

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Definitions:

Periodic Inventory

A system in which the inventory is physically counted at certain periods and the cost of goods sold is calculated thereafter.

Computerized Accounting Systems

Digital systems that manage, record, and process financial transactions using software, thereby improving accuracy and efficiency.

FOB Destination

A term specifying that the seller is responsible for the goods and the cost of shipping until they are received by the buyer at the destination.

Ending Inventory

The cumulative worth of all remaining inventory a company holds at the conclusion of a financial period.