Question

which term of the ap 5,2,-1......is -49

Answer 1

ans is here............

Answer 2

HEY THERE!!

Question:


which term of the ap 5,2,-1......is -49

Method of Solution:


Let to be first term of Arithmetic Sequence or Progression=a

Let to be CommOn Difference of Arithmetic Sequence or Progression=d


Tn denotes Term of Number;


According to the Formula of Tn

Tn=a+(n-1)d

-49=5+(n-1)-3

-49=5-3n+3

-49=8-3n

-49-8=-3n


-57=-3n


•°• n=57/3


= 19


Hence , 19th term of the 5,2,1....is -49