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Derivative of $$$\frac{2 \sin{\left(u \right)}}{\left|{y}\right|}$$$ with respect to $$$u$$$
Related calculators: Logarithmic Differentiation Calculator, Implicit Differentiation Calculator with Steps
Your Input
Find $$$\frac{d}{du} \left(\frac{2 \sin{\left(u \right)}}{\left|{y}\right|}\right)$$$.
Solution
Apply the constant multiple rule $$$\frac{d}{du} \left(c f{\left(u \right)}\right) = c \frac{d}{du} \left(f{\left(u \right)}\right)$$$ with $$$c = \frac{2}{\left|{y}\right|}$$$ and $$$f{\left(u \right)} = \sin{\left(u \right)}$$$:
$${\color{red}\left(\frac{d}{du} \left(\frac{2 \sin{\left(u \right)}}{\left|{y}\right|}\right)\right)} = {\color{red}\left(\frac{2}{\left|{y}\right|} \frac{d}{du} \left(\sin{\left(u \right)}\right)\right)}$$The derivative of the sine is $$$\frac{d}{du} \left(\sin{\left(u \right)}\right) = \cos{\left(u \right)}$$$:
$$\frac{2 {\color{red}\left(\frac{d}{du} \left(\sin{\left(u \right)}\right)\right)}}{\left|{y}\right|} = \frac{2 {\color{red}\left(\cos{\left(u \right)}\right)}}{\left|{y}\right|}$$Thus, $$$\frac{d}{du} \left(\frac{2 \sin{\left(u \right)}}{\left|{y}\right|}\right) = \frac{2 \cos{\left(u \right)}}{\left|{y}\right|}$$$.
Answer
$$$\frac{d}{du} \left(\frac{2 \sin{\left(u \right)}}{\left|{y}\right|}\right) = \frac{2 \cos{\left(u \right)}}{\left|{y}\right|}$$$A