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

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

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

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

- sin (x) cos (y)

Solution steps

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

Treat

y

as a constant

Take the constant out:

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

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

Apply the common derivative:

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

= cos (y) (- sin (x))

Simplify

= - sin (x) cos (y)

\frac{d x}{d t} = \frac{457.8 - 7 x}{2180}

(1 - e^{x^{3}})^{5}

x \to 1 - lim (x^{2} - 2)

y = \frac{x ^{2} - 1}{x ^{2} + x + 1}, (1, 0)

y^{^{''}} + 4 y^{^{'}} + 5 y = cos (2 x)

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