Verify the Identity $$\sin \left( \frac { 3 \pi } { 2 } - \theta \right) = - \cos \theta$$

question 202

Essay

Verify the identity.
- $$\sin \left( \frac { 3 \pi } { 2 } - \theta \right) = - \cos \theta$$

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Definitions:

Price Discrimination

A pricing strategy where identical or substantially similar goods or services are sold at different prices by the same provider in different markets or to different customers.

Control Resale

Policies or measures designed to regulate or restrict the resale of products or assets.

Perfectly Competitive Markets

A market structure characterized by many buyers and sellers, homogenous products, and no barriers to entry or exit, leading to optimal allocation of resources.

Monopoly Firms

Companies that have exclusive control over the supply of a product or service in a market, possibly leading to higher prices for consumers.