Answer:
AP(Arithmetic progression).
Step-by-step explanation:
Given formula;
s=n/2(a+l)
Explanation;
Given formula;
s=n/2(a+l)
Explanation;
The given formula is used to calculate the sum of the given AP(Arithmetic progression).
In which;
S = Sum of AP(Arithmetic progression).
n = number of terms in AP(Arithmetic progression).
a = first term of AP(Arithmetic progression).
l = last term of AP(Arithmetic progression).
