Question

the variance of first twenty six terms of the a.p 13,15,17 is​

Answer 1

to find the 25th term

Tn = a+(n-1)d.......formula
tn= ?
n=25
d=2
a=13

Now, tn= a+(n-1)d
=13+(25-1)2
= 13+24x2
= 13+48
= 61

there for the 25th term is 61



hope it will help you........✌