Question

The 10th term from the end of the AP: -5,-10,-15…,-1000 is

Answer 1

Step-by-step explanation:

Given: AP:-5,-10,-15…,-1000

To find: A10 from last.

Reverse the A.P:

1000,........-15,-10,-5.

here, a=1000,

d=-5-(-10)=-5+10=5.

Formula of nth term of an A.P:

An=a+(n-1)×d.

=> 1000+(10-1)×5

=> 1000+9×5

=> 1000+45

=> 1045.