Question

Find the nth term of the gp : 56, 35, 24, 16,...

Answer 1

Answer:

an= 77-21n

Step-by-step explanation:

We need to find the nth term.

So, a=56

     d=35-56=-21

Formula,

              an=a+(n-1)d

              an=56+(n-1).(-21)

              an=56-21n+21

              an=77-21n