Question

Which term of the arithmetic progression 5,2,-1,..... Is -79

Answer 1

Answer:

29th term

Step-by-step explanation:

First term (a)=5

common difference=a2-a1 =2-5 =-3

an=-79

an=a+(n-1)d

-79=5+(n-1)-3

-79=5-3n+3

-79=8-3n

-79-8=-3n

-3n=-87

n=29

29th term of the A.P is -79

I hope this answer may help you