Final answer to the problem
$8\cos\left(8x\right)$
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Step-by-step Solution
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1
Apply the trigonometric identity: $\frac{d}{dx}\left(\sin\left(\theta \right)\right)$$=\frac{d}{dx}\left(\theta \right)\cos\left(\theta \right)$, where $x=8x$
$\frac{d}{dx}\left(8x\right)\cos\left(8x\right)$
Learn how to solve calcul différentiel problems step by step online.
$\frac{d}{dx}\left(8x\right)\cos\left(8x\right)$
Learn how to solve calcul différentiel problems step by step online. d/dx(sin(8x)). Apply the trigonometric identity: \frac{d}{dx}\left(\sin\left(\theta \right)\right)=\frac{d}{dx}\left(\theta \right)\cos\left(\theta \right), where x=8x. Apply the formula: \frac{d}{dx}\left(cx\right)=c\frac{d}{dx}\left(x\right), where c=8. Apply the formula: \frac{d}{dx}\left(x\right)=1.
Final answer to the problem
$8\cos\left(8x\right)$
