Question

. Find the fourth term of the AP: The First term of an AP is -3 and the common difference
is - 2​

Answer 1

Step-by-step explanation:

a+(n-1)D

-3+(4-1)-2

-3+(3)-2

-3-6=-9

Answer 2

Step-by-step explanation:

a1=-3

n=4

d=-2

an=a+(n-1)d

therefore,a4=-3+(4-1)×(-2)

=-3-6

=-9

hence 4th term is -9