Question

Find the 26 term is a1=30 and d =-2

Answer 1

`a_(26)=-20`

Explanation:

The formula of a nth term of an arithmetic sequence:

`a_n=a_1+(n-1)d`

We have:

`a_1=30,\ d=-2,\ n=26`

Substitute:

`a_(26)=30+(26-1)(-2)=30+(25)(-2)=30-50=-20`