Using a Sum or Difference Identity, Write the Following as an Expression

question 72

Multiple Choice

Using a sum or difference identity, write the following as an expression involving functions of x.
- $\sin 22.5 ^ { \circ } \cos 22.5 ^ { \circ }$

• A) \(\frac { \sqrt { 2 } } { 2 }\)
• B) \(\sqrt { 3 }\)
• C) \(\frac { \sqrt { 2 } } { 4 }\)
• D) \(\frac { \sqrt { 3 } } { 3 }\)

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Definitions:

Profit Maximization

The process by which a firm determines the price and output level that returns the greatest profit, considering its cost structure and the market demand.

Purely Competitive

A market structure characterized by a large number of small firms, identical products, easy entry and exit, and perfect information, leading to price taking behavior.

Market Price

The price at which a good or service is offered in the marketplace where demand meets supply.

Purely Competitive

A market structure characterized by many buyers and sellers, all of whom sell homogeneous products, with no single party able to influence the market price.