What is (\partial)/(\partial x)(ln(x^7+y^7)) ?

The answer to (\partial)/(\partial x)(ln(x^7+y^7)) is (7x^6)/(x^7+y^7)

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(\partial)/(\partial x)(ln(x^7+y^7))

\frac{\partial}{\partial x} (ln (x^{7} + y^{7}))

\frac{7 x ^{6}}{x ^{7} + y ^{7}}

Solution steps

\frac{\partial}{\partial x} (ln (x^{7} + y^{7}))

Treat

y

as a constant

Apply the chain rule:

\frac{1}{x ^{7} + y ^{7}} \frac{\partial}{\partial x} (x^{7} + y^{7})

= \frac{1}{x ^{7} + y ^{7}} \frac{\partial}{\partial x} (x^{7} + y^{7})

\frac{\partial}{\partial x} (x^{7} + y^{7}) = 7 x^{6}

= \frac{1}{x ^{7} + y ^{7}} \cdot 7 x^{6}

Simplify

\frac{1}{x ^{7} + y ^{7}} \cdot 7 x^{6} : \frac{7 x ^{6}}{x ^{7} + y ^{7}}

= \frac{7 x ^{6}}{x ^{7} + y ^{7}}

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What is (\partial)/(\partial x)(ln(x^7+y^7)) ?
The answer to (\partial)/(\partial x)(ln(x^7+y^7)) is (7x^6)/(x^7+y^7)