Selina Concise Mathematics Class 10 ICSE Solutions Arithmetic ProgressionSelina Publishers Concise Mathematics Class 10 ICSE Solutions Chapter 10 Arithmetic ProgressionArithmetic Progression Exercise 10A – Selina Concise Mathematics Class 10 ICSE Soluti…

Sum Of The First n Terms Of An Arithmetic Progression The sum of first n terms of an A.P. is given by Sn = n/2 [2a + (n – 1) d]         or       Sn = n/2 [a + Tn] Note: (i) If sum of n terms Sn is given then general term Tn = Sn – Sn-1 where Sn-1 is sum …

What Is Arithmetic MeanIf three or more than three terms are in A.P., then the numbers lying between first and last term are known as Arithmetic Means between them.i.e. The A.M. between the two given quantities a and b is A so that a, A, b are in A.P. i.…

What Is Arithmetic ProgressionArithmetic Progression (A.P.)Arithmetic Progression is defined as a series in which difference between any two consecutive terms is constant throughout the series. This constant difference is called common difference. A seq…