Question

the nth term of the A.P a,3a,5a..........is​

Answer 1

Step-by-step explanation:

first term (a) = a

common difference (d) = 3a-a =2a

an= a+ (n-1)d

an = a+(n-1)2a

an = a(1+2n-2)

an = a(2n-1)