Rewrite the Expression in Terms of Exponentials and Simplify the Results

question 148

Multiple Choice

Rewrite the expression in terms of exponentials and simplify the results.
- $\cosh 9 x - \sinh 9 x$

• A) \(- 9 x\)
• B) \(e ^ { 9 x } - e ^ { - 9 x }\)
• C) \(\mathrm { e } ^ { - 9 \mathrm { x } }\)
• D) \(2 e ^ { - 9 x }\)

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Definitions:

Precise

Referring to the closeness of two or more measurements to each other, showing little variance when repeated.

Accuracy

How closely a measurement, calculation, or specification aligns with the true value or an established standard.

Significant Figures

The number of digits in a measurement that are known with a certain degree of reliability, used to express the precision of the measurement.

Significant Figures

The digits in a number that carry meaningful contributions to its measurement accuracy.