Solve 2(7r)

$$2 ( 7 r )$$

Differentiate w.r.t. r

$$14$$

Steps Using Definition of a Derivative

Multiply 2 and 7 to get 14.

$$\frac{\mathrm{d}}{\mathrm{d}r}(14r)$$

The derivative of ax^{n} is nax^{n-1}.

$$14r^{1-1}$$

Subtract 1 from 1.

$$14r^{0}$$

For any term t except 0, t^{0}=1.

$$14\times 1$$

For any term t, t\times 1=t and 1t=t.

$$14$$

Evaluate

$$14r$$

Solution Steps

Multiply 2 and 7 to get 14.

$$14r$$