Question

if the 10th term is 9 and 9th term is 10 then the common difference is​

Answer 1

Answer:

formula

a10-a9=common difference

d=9-10

=-1

ans.

Answer 2

Answer:

common difference can be

t2-t1

t3-t2

.

.

.

.

t10-t9=9-10

-1 is the common difference