What is the derivative of cos(-x) ?

The derivative of cos(-x) is -sin(x)

What is the first derivative of cos(-x) ?

The first derivative of cos(-x) is -sin(x)

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derivative of

cos (- x)

- sin (x)

Solution steps

\frac{d}{d x} (cos (- x))

Simplify

cos (- x) : cos (x)

= \frac{d}{d x} (cos (x))

Apply the common derivative:

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

= - sin (x)

\frac{\partial}{\partial y} (5 x + 4 y)

\int 2 x e^{3 x^{2}} d x

x \to + (- 1) lim (x - 1)

\int_{0}^{2} π (\frac{4}{x ^{2} + 4})^{2} d x

x \to 0 lim (\frac{( sin ( x ) )}{x})

What is the derivative of cos(-x) ?
The derivative of cos(-x) is -sin(x)
What is the first derivative of cos(-x) ?
The first derivative of cos(-x) is -sin(x)