Answer: The expression for arithmetic series for seven terms is given by
[tex]\sum_{n=1}^{n=7}(2n-1)[/tex]
Step-by-step explanation:
Since we have given that
1+3+5+..................
Here, a = 1
d= common difference = a₂-a₁=3-1=2
n = 7
We need to write the arithmetic series for seven terms:
[tex]\sum_{n=1}^{n=7}(2n-1)[/tex]
Hence, the expression for arithmetic series for seven terms is given by
[tex]\sum_{n=1}^{n=7}(2n-1)[/tex]
