Solve sum3*4/15

$$\sum 3 \times 4 / 15$$

Differentiate w.r.t. Σ_3

$$\frac{4}{15} = 0.26666666666666666$$

Steps Using Definition of a Derivative

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

$$\frac{4}{15}Σ_{3}^{1-1}$$

Subtract 1 from 1.

$$\frac{4}{15}Σ_{3}^{0}$$

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

$$\frac{4}{15}\times 1$$

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

$$\frac{4}{15}$$

Evaluate

$$\frac{4Σ_{3}}{15}$$