Complete the Identity $\sin ^ { 4 } x - \cos ^ { 4 } x =$

question 86

Multiple Choice

Complete the identity.
- $\sin ^ { 4 } x - \cos ^ { 4 } x =$ ?

• A) \(1 - 2 \cos ^ { 2 } x\)
• B) \(1 + 2 \cos ^ { 2 } x\)
• C) \(1 + 2 \sin ^ { 2 } x\)
• D) \(1 - 2 \sin ^ { 2 } x\)

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Definitions:

Long Run

refers to a period of time in which all factors of production and costs can be fully adjusted, including all forms of investment.

Short Run

A timeframe in economic terms where firms can adjust production levels only by changing variable inputs, with fixed inputs remaining constant.

Long Run

In economics, a period during which all factors of production and costs are variable, allowing for full industry adjustment to change.

Lowest Price

The minimum price at which a product or service is offered in the market.