Question

A9-a1=48;d=?Арифметическая прогрессия Срочноо​

Answer 1

Ответ:

6

Объяснение:

a9-a1=48

a9=a1+8d.подставим и получим

a1+8d-a1=48.  отсюда

8d=48

d=48/8

d=6

Answer 2

To find the value of 'd' in the arithmetic progression, you can use the formula for the nth term of an arithmetic sequence:

$a_n = a_1 + (n-1) * d$

where:

• $a_n$ is the nth term of the arithmetic progression.
• $a_1$ is the first term of the arithmetic progression.
• $d$ is the common difference between consecutive terms.
• $n$ is the position of the term in the arithmetic progression.

In this case, we have: $a_9 - a_1 = 48$ and we need to find the value of 'd'.

Since $a_9$ corresponds to $n = 9$ and $a_1$ corresponds to $n = 1$, we can rewrite the equation as follows:

$a_9 = a_1 + (9 - 1) * d$

Now, we can use the given information to find the value of 'd'. However, we also need the values of $a_9$ and $a_1$ to proceed. Without them, we cannot determine the exact value of 'd'. Please provide either the values of $a_9$ and $a_1$ or any additional information related to the progression, so we can calculate 'd'.