Question

Insert 3 arithmetic means between -18and 4

Answer 1

Answer:

a

1

=2

a

5

=14

n=5

d=?

a

n

=a+(n−1)d

a

5

=a+(5−1)d

14=2+4d

12=4d

d=3

∴2,5,8,11,14,.....

hope it helps you ...