Use the Fundamental Identities to Simplify the Expression

question 126

Multiple Choice

Use the fundamental identities to simplify the expression.
-sin 13° - sin 44°

• A)2 cos 28.5° sin(-15.5°)
• B)2 cos 28.5° cos(-15.5°)
• C)2 sin 28.5° cos(-15.5°)
• D)2 sin 28.5° sin(-15.5°)

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Definitions:

Null Hypothesis

In hypothesis testing, it's the hypothesis that assumes no effect or no difference and serves as the basis for testing statistical significance.

Means

The average of a set of numbers, calculated by dividing the sum of these numbers by the count of the numbers in the set.

μ

The symbol denoting the population mean in statistics, representing the average of a set of values.

Sampling Distribution

The probability distribution of a given statistic based on a random sample, used to make inferences about the population.