Use the Product-To-Sum Formulas to Rewrite the Product as a Sum

question 10

Short Answer

Use the product-to-sum formulas to rewrite the product as a sum or difference.
​ $10 \cos 55 ^ { \circ } \cos 25 ^ { \circ }$ ​

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Definitions:

IBM Stock

Shares of ownership in the International Business Machines Corporation, a multinational technology and consulting company.

Garage Sale

A sale of used household or personal items held outdoors or in a garage, typically by the household residents to dispose of unwanted items.

Kentucky Fried Chicken

A global fast-food restaurant chain that specializes in fried chicken, founded by Colonel Harland Sanders in the United States.

Consumption Component

A part of aggregate demand representing the total value of all goods and services consumed by households.