Question

Which term of AP: 14,11,8...is-1?(6th term)

Answer 1

a=14. d =11-14=3. Now we have an=-1. Now an =a+(n-1)×d. an=14+(n-1)×-3. -1-14=(n-1)×-3. -15÷-3=n-1. 5=n-1n=5+1=6. The 6th term of the A.P.is -1 I think it is helpful for you