Use a Sum or Difference Identity to Find the Exact $\sin \left( - \frac { 5 \pi } { 12 } \right)$

question 423

Multiple Choice

Use a sum or difference identity to find the exact value.
- $\sin \left( - \frac { 5 \pi } { 12 } \right)$

• 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:

Sq.Ft

Abbreviation for square feet, a unit of area measurement equivalent to a square measuring one foot on each side.

Hypothesis

A proposed explanation for a phenomenon, which can be tested through experimentation and observation.

P-value

A measure in statistical hypothesis testing representing the probability of obtaining test results at least as extreme as the ones observed during the test, assuming the null hypothesis is true.

Proportion

A part, share, or number considered in comparative relation to a whole.