What is the first derivative of 7-x ?

The first derivative of 7-x is -1

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derivative of 7-x

\frac{d}{d x} (7 - x)

- 1

Solution steps

\frac{d}{d x} (7 - x)

Apply the Sum/Difference Rule:

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

= \frac{d}{d x} (7) - \frac{d x}{d x}

\frac{d}{d x} (7) = 0

\frac{d x}{d x} = 1

= 0 - 1

Simplify

= - 1

\int \frac{x ^{2}}{4 x ^{3} + 5} d x

f (x) = 5 x^{3} ln (x)

y^{^{''}} + 2 y^{^{'}} + 5 y = 0, y (0) = 5, y^{^{'}} (0) = - 5

x^{2} y^{^{''}} + 3 x y^{^{'}} + 4 y = 0

\frac{\partial}{\partial z} (sin (z^{3}) cos (x y))