What is the derivative of 9cos(x) ?

The derivative of 9cos(x) is -9sin(x)

What is the first derivative of 9cos(x) ?

The first derivative of 9cos(x) is -9sin(x)

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derivative of

9 cos (x)

- 9 sin (x)

Solution steps

\frac{d}{d x} (9 cos (x))

Take the constant out:

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

= 9 \frac{d}{d x} (cos (x))

Apply the common derivative:

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

= 9 (- sin (x))

Simplify

= - 9 sin (x)

y = - x^{2} + 16, y = 0, x = - 2, x = 3

\frac{d y}{d x} = - \frac{3 x ^{2} + 2 y ^{2}}{4 x y}

\int (2 x - 5) (3 x + 1) d x

x \to 0 lim (2 x)

\int \frac{1}{2 + 9 x ^{2}} d x

What is the derivative of 9cos(x) ?
The derivative of 9cos(x) is -9sin(x)
What is the first derivative of 9cos(x) ?
The first derivative of 9cos(x) is -9sin(x)