What is the derivative of cos(15x) ?

The derivative of cos(15x) is -sin(15x)*15

What is the first derivative of cos(15x) ?

The first derivative of cos(15x) is -sin(15x)*15

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\frac{d}{d x} (cos (15 x))

- sin (15 x) \cdot 15

Solution steps

\frac{d}{d x} (cos (15 x))

Apply the chain rule:

- sin (15 x) \frac{d}{d x} (15 x)

= - sin (15 x) \frac{d}{d x} (15 x)

\frac{d}{d x} (15 x) = 15

= - sin (15 x) \cdot 15

\int arctan (6 x) d x

y^{3} - (10 x + 6) + 3 x y^{2} y^{^{'}} = 0

\int \frac{sin ^{3} ( x )}{cos ^{4} ( x )} d x

n = 1 \sum \infty \frac{1}{n ( n + 6 )}

x \to 0 lim ((cos (2 x))^{\frac{1}{x ^{2}}})

What is the derivative of cos(15x) ?
The derivative of cos(15x) is -sin(15x)*15
What is the first derivative of cos(15x) ?
The first derivative of cos(15x) is -sin(15x)*15