Simplify the Expression Algebraically $8 \sin \left( \frac { \pi } { 2 } + x \right)$

question 67

Multiple Choice

Simplify the expression algebraically.
$8 \sin \left( \frac { \pi } { 2 } + x \right)$

• A) \(- 8 \cos x\)
• B) \(\frac { 1 } { 8 } \cos x\)
• C) \(8 \cos x\)
• D) \(8 \sin x\)
• E) \(- \frac { 1 } { 8 } \cos x\)

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Definitions:

Confidence Interval

A range of values, derived from sample statistics, that is likely to contain the true population parameter with a certain level of confidence.

Average Time

The mean value calculated by dividing the sum of all time intervals by the number of intervals.

Hold Times

The duration an entity (such as a caller in a queue or a product within a process) waits before the next action in a sequence is taken.

Test Statistic

A value calculated from sample data used to decide whether to reject the null hypothesis in statistical hypothesis testing.