Question

first term of an arithmetic sequence is 2 and common difference is 2 find 21st term​

Answer 1

Use the value of the common difference d=−10 and the first term a

1

=200 in the formula for the nth term given above and then apply it to the 20th term

a

20

=200+(−10)(20−1)=10

Answer 2

Answer:

I don't know I am sorry ok