Use a Sum or Difference Identity to Find the Exact $\sin \frac { 7 \pi } { 12 }$

question 235

Multiple Choice

Use a sum or difference identity to find the exact value.
- $\sin \frac { 7 \pi } { 12 }$

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

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Definitions:

Analysis of Variance

A collection of statistical models and their associated procedures which compare means by partitioning variance into components attributable to various sources of variability.

Group Means

The average values obtained from different groups in a study, often used in research to compare and contrast groups.

Procedure

A set procedure or method followed in a scientific study or test to achieve certain objectives or results.

More Than Two Groups

A situation in statistical analysis where comparisons are made among three or more distinct groups or categories.