the nth term of an a.p. 5, 2, -1, -4, -7 … is

 the nth term of an a.p. 5, 2, -1, -4, -7 … is

Solution:- given ap is 5, 2, -1, -4, -7 … 

Here a=5

 d=2-5=-3

nth term of Ap is

 an= a+(n-1)d

an=5+(n-1)×-3

an=5-3n+3

an=8-3n ans