What is (\partial)/(\partial y)(rcos(y)) ?

The answer to (\partial)/(\partial y)(rcos(y)) is -rsin(y)

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(\partial)/(\partial y)(rcos(y))

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

- r sin (y)

Solution steps

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

Treat

r

as a constant

Take the constant out:

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

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

Apply the common derivative:

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

= r (- sin (y))

Simplify

= - r sin (y)

\frac{d}{d x} (4 x^{2} - 5 x + 4)

f (x) = x^{4 c o s (x)}

n \to \infty lim (- 1 0^{n})

x \to - 3 lim (\frac{x}{x + 5})

\frac{d}{d x} ((x^{2} - 3)^{3})

What is (\partial)/(\partial y)(rcos(y)) ?
The answer to (\partial)/(\partial y)(rcos(y)) is -rsin(y)