What is (\partial)/(\partial y)(x^4+y^4) ?

The answer to (\partial)/(\partial y)(x^4+y^4) is 4y^3

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(\partial)/(\partial y)(x^4+y^4)

\frac{\partial}{\partial y} (x^{4} + y^{4})

4 y^{3}

Solution steps

\frac{\partial}{\partial y} (x^{4} + y^{4})

Treat

x

as a constant

Apply the Sum/Difference Rule:

(f \pm g)^{'} = f^{'} \pm g^{'}

= \frac{\partial}{\partial y} (x^{4}) + \frac{\partial}{\partial y} (y^{4})

\frac{\partial}{\partial y} (x^{4}) = 0

\frac{\partial}{\partial y} (y^{4}) = 4 y^{3}

= 0 + 4 y^{3}

Simplify

= 4 y^{3}

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What is (\partial)/(\partial y)(x^4+y^4) ?
The answer to (\partial)/(\partial y)(x^4+y^4) is 4y^3