Question

На плоскости отмечено 70 точек, причём любые 3 не лежат на одной прямой. Сколько различных отрезков можно построить, соединив эти точки попарно? Срочно!!! Заранее спасибо

Answer 1

Ответ:

Объяснение: 70*69:2=2415

Answer 2

Calculating the Number of Distinct Segments

To calculate the number of different segments that can be constructed by connecting these points pairwise, we can use the formula for combinations. The formula for combinations is given by nC2 = n! / (2! * (n-2)!), where n is the total number of points.

Applying the Formula

Using the given formula, where n = 70, we can calculate the number of different segments that can be constructed by connecting these points pairwise: 70C2 = 70! / (2! * (70-2)!)

Calculation

Let's calculate the value of 70C2: 70C2 = 70! / (2! * 68!)

Result

The result of this calculation is the number of different segments that can be constructed by connecting these points pairwise.