Question

find the 20th term of the A.p 10,7,4,1...​

Answer 1

Step-by-step explanation:

Given:

a=10

d= -3

n=20

an=a+(n-1)d

= 10+(20-1)-3

= 10+(19)(-3)

= 10 - 57

=-47

Answer 2

Answer:

Given that,

10, 7, 4, 1,.............. are in AP

first term (a)=10

Common difference (d)=-3

20th term=a+19d

=10+19(-3)

=10-57

=-47