Prove $\cot \left( x + \frac { \pi } { 4 } \right) = \frac { 1 - \tan x } { \tan x + 1 }$

question 109

Essay

Prove $\cot \left( x + \frac { \pi } { 4 } \right) = \frac { 1 - \tan x } { \tan x + 1 }$ .

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Definitions:

Investing Activities

Financial transactions and events related to acquiring or disposing of assets, such as the purchase or sale of equipment or securities, reflected in the cash flow statement.

Statement

A written or digital document that records the details of a particular financial or operational activity within a specific period.

Cash Flows

The inflows and outflows of cash and cash equivalents, representing the operational, investing, and financing activities of a business.

Cash Balance

The amount of cash a company has available at any given time, reflecting the company's liquidity position.