Simplify the Given Expression Algebraically $\cos ( \pi + x )$

question 35

Multiple Choice

Simplify the given expression algebraically. $\cos ( \pi + x )$

• A) \(\sin x\)
• B) \(- \sin x\)
• C) \(\cos x\)
• D) \(- \cos x\)
• E) 1

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Definitions:

Statistical Probability

The likelihood or chance of an event occurring, based on a scale from 0 to 1, where 0 indicates impossibility and 1 indicates certainty.

Level of Significance

A statistical measure that determines the threshold at which the null hypothesis is rejected, often denoted by alpha (α).

Null Hypothesis

A statistical presumption positing that there is no notable difference or impact.

Statistical Probability

A measure quantifying the likelihood that an event will occur, calculated based on statistical evidence.