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Lena [83]
2 years ago
12

How to find the derivative???

Mathematics
1 answer:
kakasveta [241]2 years ago
4 0

Answer:

y'=  \dfrac{2}{3}e^{2x + e^{2x}/3}

Step-by-step explanation:

We have e^{2x} = \ln(y^3) and we want the implicit differentiation \dfrac{dy}{dx}f(x) = y'

Therefore, we want to separate the y from the equation.

\ln(y^3) =e^{2x} \implies 3 \ln(y) = e^{2x}  \implies  \ln(y)  = \dfrac{e^{2x} }{3}

\implies e^{\ln(y)} = e^{e^{2x}/3} \implies \boxed{y =  e^{e^{2x}/3}}

Now we can calculate the derivative. By the chain rule,

y' = \dfrac{d}{dx}\left(e^{e^{2x}/3}\right) = e^{e^{2x}/3}\dfrac{d}{dx}\left(\dfrac{e^{2x}}{3}\right)

Now

\dfrac{d}{dx}\left(\dfrac{e^{2x}}{3}\right) =\dfrac{1}{3}\dfrac{d}{dx}\left(e^{2x}\right) = \dfrac{2}{3}e^{2x}

Therefore

y' = e^{e^{2x}/3}\cdot \dfrac{2}{3}e^{2x} = \dfrac{2}{3}e^{2x + e^{2x}/3}

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