Use a Sum or Difference Identity to Find the Exact $\sin 15 ^ { \circ }$

question 189

Multiple Choice

Use a sum or difference identity to find the exact value.
- $\sin 15 ^ { \circ }$

• A) \(\frac { - \sqrt { 6 } + \sqrt { 2 } } { 4 }\)
• B) \(\frac { \sqrt { 6 } + \sqrt { 2 } } { 4 }\)
• C) \(\frac { \sqrt { 6 } - \sqrt { 2 } } { 4 }\)
• D) \(\frac { - \sqrt { 6 } - \sqrt { 2 } } { 4 }\)

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Definitions:

Straight-Line Depreciation

An approach to apportion the price of a tangible property over its effective life in consistent annual installments.

Machinery

Machinery refers to machines or machine systems collectively, which are used in various industries for manufacturing or other operations.

Calendar Year

The one-year period that begins on January 1st and ends on December 31st, used in most accounting and financial calculations.

Straight-Line Method

A method of calculating the depreciation of an asset, which assumes the asset will depreciate by the same amount each year over its useful life.