Question

Q.3 

 

Answer 1

The given A.P.is `10,7,4,..............,-62`

`First term=10`

`"Common difference"=7-10=-3`

`"Last term"=1=-62`

`"For the reverse A.P, first term=-62 and common differnce=3"`

`"Thus," 11^(th) "term from the end of an given A.P"`

`= 11^(th) "term from the beginning of its reverse A.P"`

`=-62+(11-1)xx(3)`

`=-62+30`

`=-32`