Use Sum and Difference Formulas for Cosines and Sines
- $\sin 260 ^ { \circ } \cos 20 ^ { \circ } - \cos 260 ^ { \circ } \sin 20 ^ { \circ }$

question 16

Multiple Choice

Use Sum and Difference Formulas for Cosines and Sines
- $\sin 260 ^ { \circ } \cos 20 ^ { \circ } - \cos 260 ^ { \circ } \sin 20 ^ { \circ }$

• A) \(- \frac { \sqrt { 3 } } { 2 }\)
• B) \(- \frac { 1 } { 2 }\)
• C) \(\frac { 13 } { 3 }\)
• D) \(\frac { \sqrt { 3 } } { 2 }\)

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Definitions:

Probability

The measure of the likelihood that an event will occur, expressed as a number between 0 (impossible) and 1 (certain).

Poisson Probability

A distribution used to predict the probability of a given number of events happening in a fixed interval of time or space, given a constant mean rate of occurrence.

Defects

Imperfections or faults in a product or process that deviate from desired performance or specification.

Normal Distribution

This denotes a probability distribution with symmetry at the mean, proving that nearer-to-mean data points occur more regularly than those farther away.