What is an Arithmetic Progression?
An Arithmetic Progression or simply AP is a sequence of numbers such that successive terms are obtained by adding a constant number to the first term. That fixed number is called the common difference of the Arithmetic Progression. For example, the sequence 2, 5, 8, 11, 14,... is an Arithmetic Progression with first term is 2 and common difference is 3. An AP is a convergent sequence if and only if the common difference is 0, otherwise an AP is always divergent.
How to Calculate Sum of Last N Terms of Arithmetic Progression given Nth Term from End?
Sum of Last N Terms of Arithmetic Progression given Nth Term from End calculator uses Sum of Last N Terms of Progression = (Index N of Progression/2)*(Last Term of Progression+Nth Term from End of Progression) to calculate the Sum of Last N Terms of Progression, The Sum of Last N Terms of Arithmetic Progression given Nth Term from End formula is defined as the summation of the terms starting from the end to the nth term of given Arithmetic Progression, and calculated using the nth term from end of Arithmetic Progression. Sum of Last N Terms of Progression is denoted by Sn(End) symbol.
How to calculate Sum of Last N Terms of Arithmetic Progression given Nth Term from End using this online calculator? To use this online calculator for Sum of Last N Terms of Arithmetic Progression given Nth Term from End, enter Index N of Progression (n), Last Term of Progression (l) & Nth Term from End of Progression (Tn(End)) and hit the calculate button. Here is how the Sum of Last N Terms of Arithmetic Progression given Nth Term from End calculation can be explained with given input values -> 420 = (6/2)*(100+40).