Answer:
a = 1
Step-by-step explanation:
The closed formula for <span>an = an-1 – n will be found using the formula for arithmetic sequence given by:
an=a+d(n-1)
where
a=first term
d=common difference
n=number of terms
From the formula given:
a=4
d=n
thus the formula will be:
an=a+n(n-1)
an=4+n(n-1)
</span>
<span>add a constant to a row right? </span>
I don't understand the question. Could you give me more detail as to what exactly what you mean? Because .02 is a decimal, and therefore is not a whole number. Did you perhaps mean as a fraction? In that case, it's 2/100<span />