Find the Exact Value $\cos 75 ^ { \circ } \cos 30 ^ { \circ } + \sin 75 ^ { \circ } \sin 30 ^ { \circ }$

question 30

Short Answer

Find the exact value. $\cos 75 ^ { \circ } \cos 30 ^ { \circ } + \sin 75 ^ { \circ } \sin 30 ^ { \circ }$

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Definitions:

Social Network

A structure made up of individuals or organizations that are connected by one or more specific types of interdependency, such as friendship, kinship, common interest, or economic exchange.

Characteristics

Distinctive qualities or features that define a person, object, or phenomenon, contributing to its identity or essence.

Example

A representative case or instance used to illustrate a concept, rule, or procedure, or to act as a model for others to follow.

Reference Group

A social group that individuals use as a standard for evaluating their own behavior, values, and attitudes.