Answer :

deriyan191293

Answer:

Step-by-step explanation:

[tex]\frac{dy}{dx}=\frac{dy}{du}\frac{du}{dx}[/tex]

where [tex]u = x + e^{x}[/tex]

So we can obtain: [tex]\frac{dy}{dx}=(1+e^{x})\cos(u)=(1+e^{x})\cos(x+e^{x})[/tex]

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