What is the derivative of 9cos(x-7x^2) ?

The derivative of 9cos(x-7x^2) is -9sin(x)-14x

What is the first derivative of 9cos(x-7x^2) ?

The first derivative of 9cos(x-7x^2) is -9sin(x)-14x

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\frac{d}{d x} (9 cos (x) - 7 x^{2})

- 9 sin (x) - 14 x

Solution steps

\frac{d}{d x} (9 cos (x) - 7 x^{2})

Apply the Sum/Difference Rule:

(f \pm g)^{'} = f^{'} \pm g^{'}

= \frac{d}{d x} (9 cos (x)) - \frac{d}{d x} (7 x^{2})

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

\frac{d}{d x} (7 x^{2}) = 14 x

= - 9 sin (x) - 14 x

\int \frac{7 x ^{2}}{( x ^{2} + 1 ) ( x + 1 )} d x

x \to 0 lim (\frac{1 - e ^{- x}}{sin ( x )})

x (x^{2} + 1) d y = 1 - y^{2} d x

\frac{d}{d x} (500 (1 + \frac{4 x}{50 + x ^{2}}))

What is the derivative of 9cos(x-7x^2) ?
The derivative of 9cos(x-7x^2) is -9sin(x)-14x
What is the first derivative of 9cos(x-7x^2) ?
The first derivative of 9cos(x-7x^2) is -9sin(x)-14x