Question

Out of l, a, n, d, and Sn,determine the ones that are missing from each of the following:
(ii) a=-3030, l=-1530, n=51

Answer 1

Step-by-step explanation:

l = a+(n-1)d

1530=3030+(50×d)

1530-3030=50d

-1500=50d

d=-1500/50=-30

d=-30

sn = n/2(a+l)

= 51/2(1530+3030)

= 116280