Question

What is
the sum of the first nth term of an arithmetic sequence 1,3,5,7.....​

Answer 1

Answer:

bro do this question by taking this formula

Step-by-step explanation:

sn =n/2(2a+(n-1)d)

a=1

d=2

And n whatever you want and start to solve....

Answer 2

Step-by-step explanation:

nth term= a+(n-1)d

a=1

d= 3-1 = 5-3 =2

nth term = 1+(n-1)2

=1+2n-2

=2n-1