Use a Product-To-Sum Formula to Convert the Expression to a Sum

question 22

Multiple Choice

Use a product-to-sum formula to convert the expression to a sum or difference. Simplify where possible. $\cos \frac { 5 \pi } { 12 } \cos \frac { \pi } { 12 }$

• A) 0
• B) -1/4
• C) -1/2
• D) 1/4
• E) 1/2

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Definitions:

Merchandise Available for Sale

The total quantity of goods that a retailer has on hand and ready to sell to customers.

Beginning Inventory

The value of all inventory held by a company at the start of an accounting period.

Merchandise Inventory

Goods that a retail or wholesale company intends to sell to customers for a profit, listed as a current asset on the balance sheet.

Current Asset

An asset that is expected to be converted into cash, sold, or consumed within a year or the operating cycle, whichever is longer.