What is the derivative of ln(x^2+y^2) ?

The derivative of ln(x^2+y^2) is (2x)/(x^2+y^2)

What is the first derivative of ln(x^2+y^2) ?

The first derivative of ln(x^2+y^2) is (2x)/(x^2+y^2)

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derivative of

ln (x^{2} + y^{2})

\frac{2 x}{x ^{2} + y ^{2}}

Solution steps

\frac{d}{d x} (ln (x^{2} + y^{2}))

Treat

y

as a constant

Apply the chain rule:

\frac{1}{x ^{2} + y ^{2}} \frac{d}{d x} (x^{2} + y^{2})

= \frac{1}{x ^{2} + y ^{2}} \frac{d}{d x} (x^{2} + y^{2})

\frac{d}{d x} (x^{2} + y^{2}) = 2 x

= \frac{1}{x ^{2} + y ^{2}} \cdot 2 x

Simplify

\frac{1}{x ^{2} + y ^{2}} \cdot 2 x : \frac{2 x}{x ^{2} + y ^{2}}

= \frac{2 x}{x ^{2} + y ^{2}}

\frac{d}{d x} (e^{7 - x})

\frac{d ^{2}}{d x ^{2}} (9 t^{2} - 6 t + 3)

\frac{d}{d x} (ln (tanh (x)))

\int 4 cos^{3} (5 x) d x

\frac{\partial}{\partial y} (2 sin (y^{2}))

What is the derivative of ln(x^2+y^2) ?
The derivative of ln(x^2+y^2) is (2x)/(x^2+y^2)
What is the first derivative of ln(x^2+y^2) ?
The first derivative of ln(x^2+y^2) is (2x)/(x^2+y^2)