Hi all can we post helpful formulas for the test in this thread?
I have 2: L=a+(n-1)d
sum(of a sequence)= n/2[2a+(n-1)d]where L= last term, a=1st term and d=constant difference among the terms.
I need more sequence formula.
Arent there as many sequence formulas as there are unique sequences? That's the point of a sqeuence, it's defined by a particular formula.