Question

3/2,1/2,-1/2,-3/2 find the 20th term and n th term

Answer 1

Answer:

20th term= -35/2

nth term=5/2-n

Step-by-step explanation:

This is an AP

Common difference d= -1 (-1/2-1/2= 1/2-3/2)

a= 3/2

nth term of AP = a + (n-1)d

=3/2 + 19*(-1)

= -35/2

nth term = 3/2 +(n-1)*(-1)

= 3/2-n +1

=5/2-n

Hope this helps