Final Answer
$2\cos\left(x\right)^3$
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Step-by-step Solution
Problem to solve:
$-\frac{\left(2\right)\left(-1\right)\cos\left(x\right)^3}{1}$
Specify the solving method
1
Any expression divided by one ($1$) is equal to that same expression
$2\cos\left(x\right)^3$
Final Answer
$2\cos\left(x\right)^3$