Formulas of Arithmetic Sequences including:
General Term tn=a+(n-1)d
Sum Sn=(a+tn)n/2 Sn(2a+(n-1)d)n/2
Formulas of Geometric Sequences including:
General Term tn=aRn-1
Sum Sn=a(Rn-1),r not=1 Sn=rtn-a/r-1,r not=1 S00=a/1-r,r not=1
Formulas of Arithmetic Sequences including:
General Term tn=a+(n-1)d
Sum Sn=(a+tn)n/2 Sn(2a+(n-1)d)n/2
Formulas of Geometric Sequences including:
General Term tn=aRn-1
Sum Sn=a(Rn-1),r not=1 Sn=rtn-a/r-1,r not=1 S00=a/1-r,r not=1