Rewrite the Expression in Terms of Exponentials and Simplify the Results

question 79

Multiple Choice

Rewrite the expression in terms of exponentials and simplify the results.
- $\cosh 3 x - \sinh 3 x$

• A) \(2 e ^ { - 3 x }\)
• B) \(\mathrm { e } ^ { 3 x } - \mathrm { e } ^ { - 3 \mathrm { x } }\)
• C) \(- 3 x\)
• D) \(\mathrm { e } ^ { - 3 \mathrm { x } }\)

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