What is (\partial)/(\partial y)(x*cos(y)) ?

The answer to (\partial)/(\partial y)(x*cos(y)) is -xsin(y)

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(\partial)/(\partial y)(x*cos(y))

\frac{\partial}{\partial y} (x \cdot cos (y))

- x sin (y)

Solution steps

\frac{\partial}{\partial y} (x cos (y))

Treat

x

as a constant

Take the constant out:

(a \cdot f)^{'} = a \cdot f^{'}

= x \frac{\partial}{\partial y} (cos (y))

Apply the common derivative:

\frac{\partial}{\partial y} (cos (y)) = - sin (y)

= x (- sin (y))

Simplify

= - x sin (y)

y = \frac{6 x}{x + 5}, (- 3, - 9)

n = - \infty \sum \infty n^{2}

\frac{x - arctan ( x )}{x ^{2}}

\int_{1}^{3} 2 x^{2} + 2 x + 4 d x

\int \frac{1}{cot ^{2} ( x )} d x

What is (\partial)/(\partial y)(x*cos(y)) ?
The answer to (\partial)/(\partial y)(x*cos(y)) is -xsin(y)