Question 1:
Find the formula of the n-th term of an arithmetic progression
:
Question 2:
In the arithmetic progression (
):
. Is
a term of this progression? If yes, find its number.
Question 3:
Find the initial term of the arithmetic sequence (
), if
.
Question 4:
What is the number of the first positive term of an arithmetic sequence (
): …?
Question 5:
Find the first negative term of an arithmetic sequence (
):
.
Please note, you have solved only half of the test. For the complete test get a Must Have account.
Get started