Question

Deternmine 27th term of an ap whose 9th term is -10 and common difference is 1

Answer 1

HEY MATE!

HERE IS YOUR ANSWER:

9th term =-10=a+8d

d=1

So a+8(1)=-10

a+8=-10

a=-10-8

a=-18

Now a27=a+26d

a27=-18+27(1)

a27=-18+27

a27=9

27 th term is 9.

HOPE IT HELPED ^_^