How Do You Apply the Chain Rule to Differentiate y=e^(√x)?

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1. Find the derivative of y=e[itex]\sqrt{x}[/itex]

Homework Equations



Chain rule

The Attempt at a Solution



y=eu

[itex]\frac{dy}{du}[/itex]= ueu-1


u=[itex]\sqrt{x}[/itex]

[itex]\frac{du}{dx}[/itex]= [itex]\frac{1}{2}[/itex]x-1/2

[itex]\frac{dy}{dx}[/itex]= [itex]\sqrt{x}[/itex]e[itex]\sqrt{x}[/itex]-1 × [itex]\frac{1}{2}[/itex]x-1/2

= [itex]\sqrt{x}[/itex] [itex]\frac{e^\sqrt{x}}{e}[/itex] × [itex]\frac{1}{2\sqrt{x}}[/itex]

= [itex]\frac{e^\sqrt{x}}{2e}[/itex]

The answer to this question is [itex]\frac{e^\sqrt{x}}{2\sqrt{x}}[/itex]. What did I do wrong?

Any help is much appreciated.
 
Last edited:
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Nevermind, I got it.

The derivative of e^x is still e^x.