Respuesta :
You can use the arithmetic sequence sum formula here:
[tex]n(a_1+ \frac{d(n-1)}{2} )[/tex]
Where d = 4
n = 15
[tex]a_i[/tex] = 4i-1
Then, plug the values in, and you should get 465
[tex]n(a_1+ \frac{d(n-1)}{2} )[/tex]
Where d = 4
n = 15
[tex]a_i[/tex] = 4i-1
Then, plug the values in, and you should get 465