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Oliga [24]
3 years ago
12

Find the derivative in the form dy/dx

Mathematics
1 answer:
bezimeni [28]3 years ago
6 0

ANSWER

\frac{dy}{dx}  = x{(3x)}^{ {x}^{2} }  (ln(9 {x}^{2} )  + 1)

EXPLANATION

The given equation is;

y =  {(3x)}^{ {x}^{2} }

Take natural log of both sides:

ln(y) =  ln({(3x)}^{ {x}^{2} } )

This implies that,

ln(y) = {x}^{2}   ln({(3x)})

We differentiate to get,

\frac{1}{y}  \frac{dy}{dx}  =  ln(3x) (2x) +  {x}^{2} ( \frac{1}{x} )

This simplifies to

\frac{dy}{dx}  =y (2x ln(3x)  + x)We substitute for y to get:

\frac{dy}{dx}  = {(3x)}^{ {x}^{2} }  (2x ln(3x)  + x)

Or

\frac{dy}{dx}  = x{(3x)}^{ {x}^{2} }  (2ln(3x)  + 1)

\frac{dy}{dx}  = x{(3x)}^{ {x}^{2} }  (ln(9 {x}^{2} )  + 1)

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